Ti Arto : The Ultimate Refill Friendly Pen

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The Original Refill-Friendly Pen

Our Ti Arto was the first, nearly universal refill-friendly pen designed to truly changed the game. This is the first pen with our self-adjusting collet grip that makes it possible to write seamlessly with so many different refills. Machined entirely out of solid titanium, the Ti Arto has the perfect amount of heft and strength without weighing you down during long writing sessions. Simply pop in one of 200+ compatible refills, screw the grip on, and get writing.

USA & INTL Patents Pending.

Click out the "Videos" tab below to see a demo / instructions.

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- Accepts more than 200+ time-tested pen cartridges *(See the refill list)*
- Machined from titanium alloy (Grade 5)
- Well balanced design
- No refill "tip-wiggle"
- Sturdy titanium acme-style flat threads
- Screw-on style cap
- Scratch-resistant, raw-machined finish
- Anti-slip grip design
- Titanium pocket clip (Grade 4 titanium for proper tension)
- Every pen comes with a high-quality felt pen sleeve & pen cap tool

Demo / Instructional Videos

Get comfortable, this will take a while.
The refills listed below have been tested, are easy to find, and are extremely affordable. We are still ordering and finding more and more refills that work perfectly with our pen. We update the list as we find more.

Pen Name / Refill Name

Rollerball Style Refills

•Avant Pen Refills (0.5mm)
•Bic Velocity Gel Refill 0.7mm (Medium)
•Bic Velocity Gel Refill 1.6mm (Bold)
•Cross Gel Rolling Ball Refill 0.7mm
•Cross Porous Point Felt Tip Refills (Fine & Medium)
•Dong-A Fine Tech RT Pen Refill (GRC-43)
•Duke Rollerball Refill (Medium)
•Faber-Castell Ceramic Rollerball Refill 0.5mm
•Foray (Office Depot) Replacement Refills
•Foray (Office Depot) Replacement for Schmidt Rollerball Refills
•Foray (Office Depot) Replacement for Waterman Rollerball Refills
•Lamy M63 Refill
•Moleskine Gel Refills (0.5 and 0.7 mm)
•Mont Blanc Fineliner Refills
•Mont Blanc 163 Rollerball Pen Refills (F) & (M)
•Monteverde Rollerball Refill (Mont Blanc Style Replacements)
•Monteverde Mini Rollerball J22 Refill for Mini Jewelria Pens
•MUJI 0.5mm Refill
•Ohto C-304P Ceramic Rollerball Pen Refill – 0.4mm
•Ohto C-305P Ceramic Rollerball Pen Refill – 0.5mm
•Ohto C-307P Ceramic Rollerball Pen Refill – 0.7mm
•Ohto C-310P Ceramic Rollerball Pen Refill – 1.0mm
•Ohto F-300 Fude Pen Brush Refill
•Pentel EnerGel BLN105 Rollerball Pen Refill – 0.5mm
•Pentel EnerGel LR7 Gel Pen Refill – 0.7 mm
•Pentel EnerGel LR10 Gel Pen Refill – 1.0 mm
•Pentel EnerGel LRN5 Needle-Point Gel Pen Refill – 0.5 mm
•Pentel EnerGel LRN7 Needle-Point Gel Pen Refill – 0.7 mm
•Pentel HyperG Retractable KL257 Series (LR7 & KLR7)
•Pentel Sliccies Gel Multi Pen Refill (XBGRN3A) – 0.3 mm
•Pentel Sliccies Gel Multi Pen Refill (XBGRN4A) – 0.4 mm
•Pentel Sliccies Gel Multi Pen Refill (XBGRN5A) – 0.5 mm
•Pentel Slicci Techo Mini Gel Pen Refill (BG503) – 0.3 mm
•Pilot Ageless Future Gel Pen Refill (BLGS-7) – 0.7 mm (2 Colors)
•Pilot B2P Bottle to Pen Gel Ink Pen Refill – 0.7mm
•Pilot Frixion Ball Gel Multi Pen (LFBTRF refill) – 0.38mm
•Pilot Frixion Ball Gel Multi Pen (LFBTRF refill) – 0.5mm
•Pilot Frixion Ball Gel Multi Pen (LFTRF refill) – 0.38mm
•Pilot FriXion Ball 2 Biz Gel Pen Refill – 0.38 mm
•Pilot Frixion Erasable Gel Pen Refill (LFRF30P4) – 0.4mm
•Pilot Frixion BLS-FR5 (LFBK-23EF-B refill) – 0.5mm
•Pilot G2 Refills (America’s #1 selling ink gel pen, 0.38, 0.5, 0.7, &1.0mm)
•Pilot G2 Pro
•Pilot G6
•Pilot Hi-Tec-C Cavalier 0.4mm (Has more ink than the standard Hi-Tec-C refill)
•Pilot Hi-Tec-C Coleto 0.3mm (LHKRF-10C3) 15 different colors
•Pilot Hi-Tec-C Coleto 0.4mm (LHKRF-10C4) 15 different colors
•Pilot Hi-Tec-C Coleto 0.5mm (LHKRF-10C5) 15 different colors
•Pilot Hi-Tec-C Slim Knock Gel Pen Refill (LHSRF-8C3) – 0.3mm – 3 Colors
•Pilot Hi-Tec-C Slim Knock Gel Pen Refill (LHSRF-8C4) – 0.4mm – 3 Colors
•Pilot Hi-Tec-C “Standard” – 0.25mm (BLS-HC25)
•Pilot Hi-Tec-C “Standard”- 0.3mm (BLS-HC3)
•Pilot Hi-Tec-C “Standard”- 0.4mm (BLS-HC4)
•Pilot Hi-Tec-C “Standard”- 0.5mm (BLS-HC5)
•Pilot Juice Gel Ink Series Refill 0.38, 0.5, 0.7mm (LP2RF) – (3 Colors)
•Pilot Precise V5 RT/V7 RT, named Hi-tecpoint V5 RT/V7 RT in Europe
•Pilot Q7 Needle Point Refill 0.7mm (BLS-GCK-7 / LHKRF-8C7)
•Pilot V ball RT (BLS-VB5RT)
•Pelikan Roller Refill 338 Rollerball
•Platinum Gel Pen Refill (BSP-60S) 0.5mm
•Platinum Gel Ball Pen Refill (GSP-80N) – 0.5 mm
•Roting TIKKY Liner Refill – 0.5mm
•Sakura R-GBH Ballsign Gel Multi Pen Refill – 0.4 mm (4 Colors)
•Sakura R-GBP Ballsign Knock Gel Pen Refill – 0.4 mm (3 Colors)
•Schmidt Safety ceramic roller 888 Fine
•Schneider Topball 850
•Sharpie S-Gel Refills
•Staples Classic Grip Pen 0.7mm Gel (#31581)
•TUL GL1 Gel Pen Retractable Needle Point Fine 0.5mm
•Uniball Signo DX 0.28mm Refill (UMR-1-28)
•Uniball Signo DX 0.38mm Refill (UM-151)
•Uniball Signo DX 0.5mm Refill (UMR-1-05)
•Uniball Fanthom Erasable Gel Pen Refill (UFR-122) – 0.5 mm (3 Colors)
•Uniball Impact RT 1.0mm Bold (Signo UMR-80)
•Uniball Style Fit Gel Multi Pen Refill (UMR-109) – 0.28, 0.38, 0.5mm (16 Colors)
•Uniball Signo RT Gel 0.38mm & 0.5mm (UMN-138)
•Uniball Signo (UMN-152)
•Uniball Signo 0.28mm (UMN-82)
•Uniball Signo 0.38mm (UMN-83)
•Uniball Signo 207 Gel Refill 0.7mm (UMR-87, UMR-85)
•Uniball Jetstream 0.38 (SXR-38)
•Uniball Jetstream 0.5mm (SXR-5)
•Uniball Jetstream 0.7mm (SXR-7)
•Uniball Jetstream 1.0mm (SXR-7)
•Uniball Jetstream 1mm (SXR-10)
•Uniball Mitsubishi Liquid Ink Rollerball Pen Refill  (UBR-300)- 0.5 mm
•Visconti Rolling Ceramic 0.7mm (AA40)
•Waterman Rollerball Refill
•Zebra Sarasa Clip Pen Refill – 0.7mm (JF-Refills for Sarasa, Sarasa SE, Sarasa Clip)
•Zebra JF-0.4 Sarasa Gel Pen Refill – 0.4 mm (4 Colors)
•Zebra JF-0.5 Sarasa Gel Pen Refill – 0.5 mm (4 Colors)
•Zebra JJ2 Gel Ink Refill
•Zebra J15 Gel Ink Refill
•Zebra JJZ15 Gel Ink Refill
•Zebra JJ21 Gel Ink Refill
•Zebra Sarasa Dry Gel Ink Rollerball Refill (JLV-0.4) – 0.4 mm (3 Colors)
•Zebra Sarasa Dry Gel Ink Rollerball Refill (JLV-0.5) – 0.5 mm (3 Colors)
•Zebra Gel Ink Rollerball Refills (RBJF5) – 0.5mm (3 Colors)
•Zebra JT-0.4 Sarasa Gel Pen Refill (RJT4-BK)- 0.4 mm
•Zebra RJF3 Gel Ink Refill
•Zebra RJF4 Gel Ink Refill
•Zebra RJF5 Gel Ink Refill
•Zebra RJF10 Gel Ink Refill
•Zebra Sarasa (NJK-0.4) – 0.4mm
•Zebra Sarasa (NJK-0.5) – 0.5mm

Ballpoint Style Refills

•Ballograf Original Ballpoint Pen Refill (4 Colors)
•Ballograf Pocket Ballpoint Pen Refill (2 Colors)
•Bic Pro+ 1.0mm Pen Refill
•Diplomat EasyFLOW Ballpoint Pen Refill
•Caran D’ache Goliath Refill
•Faber-Castell Ballpoint Pen Refill (Medium)
•Faber-Castell Scribero Gel Ink Roller Refill
•Fisher Space Pen “PR” Series Refills – 15 Different Refills
•Fisher Space Pen “U” Series Refills (UF1, UF2, UF4) – 3 Colors
•Foray (Office Depot) Ballpoint Refill for Parker Refills
•Foray (Office Depot) Replacement For Mont Blanc Ballpoint Refills
•Foray (Office Depot) Ballpoint Refill for Waterman Refills
•Kaweco Soul G2 Refill 1.0mm
•Kaweco Sport Roller Ball Pen Refill (This is a smooth Rollerball gel ink)
•Kokuyo FitCurve Ballpoint Pen Refill (PRR-SJ7D) – 0.7 mm (3 Colors)
•Lamy M22F Refill – Fine, Med, Broad
•Metaphys Locus 3Way Multi Pen Refill – 0.5mm
•Midori Brass Bullet Ballpoint Pen Refill – 0.5 mm
•Moleskine Ballpoint Refill
•Mont Blanc Ballpoint Refills (F) & (M)
•Monteverde Needle Point Refill (Fine)
•Monteverde Soft Roll P13 – Colored inks
•Monteverde Soft Roll P15- (Superbroad, Medium, Ultrafine)
•Ohto P80-05NP Needlepoint Ballpoint Pen Refill 0.5mm
•Ohto P80-07NP Needlepoint Ballpoint Pen Refill 0.7mm (writing width is 0.35mm)
•OhtoPS-205NP Extra-Fine Ballpoint Pen Refill 0.5mm (writing width is 0.35mm)
•Ohto PS-207NP Extra-Fine Ballpoint Pen Refill 0.7mm
•Ohto 893NP Needle-Point Ballpoint Pen Refill – 0.3 mm
•Ohto 895NP Needle-Point Ballpoint Pen Refill – 0.5 mm
•Ohto 897NP Needle-Point Ballpoint Pen Refill – 0.7 mm
•Parafernalia Ballpoint Pen Refill
•Parker Ballpoint Pen Refill (Broad, Medium, Fine)
•Parker GEL Ballpoint Pen Refill (Medium)
•Parker Quinkflow Ballpoint Pen Refill (Medium, Fine)
•Pelikan Giant Ballpoint Pen Refill 337 (Broad, Fine, Medium)
•Pentel Rolly C4 Ballpoint Multi Pen Refill (BKSS7) – 0.7 mm (4 Colors)
•Pentel (KFLT8) Ballpoint Pen Refill
•Pentel Selfit Ballpoint Pen Refill (BKS7H-AD)- 0.7 mm
•Pentel Vicuna XBXST5-A Refill – 0.5mm
•Pentel Vicuna BXM5H Refill – 0.5mm
•Pentel Vicuna BXM7H Refill – 0.7mm
•Pilot BRFV-8EF Acro Ink Ballpoint Pen Refill – 0.5 mm (3 Colors)
•Pilot BRFV-8F Acro Ink Ballpoint Pen Refill – 0.7 mm (3 Colors)
•Pilot BRFN-30F Ballpoint Pen Refill – 0.7 mm
•Pilot BRFN-30M Ballpoint Pen Refill – 1.0 mm
•Pilot BTRF-6F Ballpoint Pen Refill – 0.7 mm (3 Colors)
•Platignum Standard Ballpoint Pen Refill
•Sailor Pica Kirei Anti-Bacterial Ballpoint Multi Pen Refill – 0.7 mm  (3 Colors)
•Sailor Pica Kirei Anti-Bacterial “Mini” Ballpoint Multi Pen Refill – 0.7 mm (3 Colors)
•Sakura R-NOB Ballpoint Pen Refill ( SAKURA R-NOB#49) – 0.7 mm
•Schmidt P900 B Ballpoint Pen Refill (Broad, Medium, Fine)
•Schmidt P950M MegaLine Pressurized Ballpoint Pen Refill (Medium)
•Schmidt 4889 MegaLine Pressurized Pen Refill
•Schmidt 9000M EasyFlow Pen Refill
•Schmidt P8900 Super Bowl Refill (Fine)
•Schneider Express 735 Pen Refill (Broad, Medium, Fine)
•Schneider Slider 755 Pen Refill (Extra-Broad, Medium)
•Sheaffer Ballpoint Refill II (Medium)
•Sheaffer T Ballpoint Refill
•Sheaffer K Ballpoint Refill
•Stabilo Ballpoint Refill
•Stabilo EASYgel Refill
•Tombow BR-ZLM Ballpoint Pen Refill
•Uni SXR-80-05 Jetstream Ballpoint Multi Pen Refill – 0.5 mm (4 Colors)
•Uni SXR-80-07 Jetstream Ballpoint Multi Pen Refill – 0.7 mm (4 Colors)
•Uni Power Tank High Grade Ballpoint Pen Refill – 0.7 mm
•Visconti Ballpoint Pen Refill AA49 1.4 (Broad)
•Visconti Gel Refill AA38 (Broad, Medium, Fine)
•Zebra F-Refill Ballpoint Pen Refill – 0.7 mm (2 Colors)
•Zebra G-301 JK-Refill Gel Pen Refills – 0.7 mm (2 Colors)
•Zebra SK-0.4 Ballpoint Pen Refill – 0.4 mm (2 Colors)
•Zebra SK-0.7 Ballpoint Pen Refill – 0.7 mm (4 Colors)
•Zebra Stylus Pen LV-Refills – 1.0mm
•Zebra Zmulsion Ink Pen Refill – 1.0 mm (EQ-1.0)

D1 Style Refills

•Acme Black 4FP Four-Function Pen Ballpoint Pen Refill
•Acme Highlighter 4FP Four-Function Pen Multi Functional Pen Refill
•Aurora Mini Medium Point Ballpoint Pen Refill
•Caran D’ache Ecridor XS Mini Refill
•Cross Matrix Ballpoint Pen Refill
•Cross Micro Ballpoint Pen Refill
•Kaweco D1 Soul Ballpoint Refill
•Lamy M21 Ballpoint Pen Refill
•Lamy M55 Tripen Marker Refill (Orange Highlighter)
•Monteverde Soft Roll Ballpoint Pen Refill – D1 (628)
•Ohto R-4C5NP Needle-Point Ballpoint Pen Refill – 0.5 mm
•Ohto R-4C7NP Needle-Point Ballpoint Pen Refill -0.7mm
•Parker Mini Ballpoint Refills
•Parker Vector 3-in-1 Ballpoint Refills
•Pelikan 38 Ballpoint Refills
•Pentel XBXS5-A (0.5mm)
•Pentel XBXS7-A (0.7mm)
•Pentel Vicuna XKBXES7 Ballpoint Pen Refill – D1 – 0.7 mm
•Pilot BRF-8M & BRF-8F-B 0.7mm Refills
•Pilot Hi-Tec-C Slims (LHRF-20C3-B 0.3mm)
•Platinum BSP-60 Series
•Platinum BSP-100
•Platinum SBSP-120S Hybrid Ink Ballpoint Refill
•Retro 1951 D-1 Ballpoint Refill
•Rotring Tikky 3-in-1 Ballpoint Refills – 0.7mm (2-Colors)
•Staedtler Multi Pen Ballpoint Refill (92RE-09)- D1 – 0.7 mm
•S.T. Dupont Mini Olympio Ballpoint Pen Refill
•Tombow Outdoor Pen Refill (BR-VMP)
•Tombow VS Ballpoint Pen Refill (BR-VS) – D1
•Uni SXR-200 Jetstream Ballpoint Multi Pen Refill (0.5 and 0.7mm)
•Zebra Tele-scopic Slide Ballpoint Pen Refill – 4C – 0.7mm
•Zebra ESB-0.7 Emulsion Ink Ballpoint Pen Refill – D1 – 0.7 mm
•Zebra JSB-0.4 (RJSB4-BK)
•Zebra JSB-0.5 (RJSB5-BK)
•Zebra Sharbo X Ballpoint Multi Pen Refill Component – D1
•Zebra Sharbo X Gel Ink Multi Pen Refill Component – D1

Other popular refills that also work inside if you trim off the excess tubing*

*Pentel Hybrid Technica Refill -0.4mm (KFGN4)
*Pilot G3 Gel Ink Rollerball Pen (BLG3-7)
*Uniball Signo UM-100 Pen Refills (UMR-5)
*Uniball Signo Broad Refills (UMR-10)
*Zebra Tapli Clip Pen Refills 1.0mm (RLH-10)
*Zebra Tapli Clip Pen Refills 1.6mm (RLH-16)

(The listed refills above are sometimes re-named or re-numbered in different parts of the world by pen refill companies. We can’t list every possible name change so we suggest you use the info above if your country/region calls the pens/refills something else. Since we don’t have access to every single refill ever made, this is an active list and will continue to be updated when we find new refills that fit inside.)

All brands, logos, and trademarks displayed and/or mentioned are used for informational purposes only and are sole property of each respected company and owner. No endorsement or ownership implied.


- Raw Machined Natural Titanium

- 1 Ti Arto pen
- 1 pen box
- 1 instruction card
- 1 protective microfiber black felt sleeve
- 1 Uniball Signo 207 0.5mm black gel ink refill installed
- 1 pen cap tool (if you ever happen to need it for quick repairs)
- 2 spare high-strength o-rings (just in case you ever need them)

3rd Party Reviews

OfficeSupplyGeek - "The BigiDesign Ti ARTO Pen is seriously the most amazing after market premium pen I’ve laid hands on in the 8 years I’ve been writing this blog."

The Gentleman Stationer - "Somebody finally did it: a universal refill pen that lives up to the hype. If you're an EDC aficionado or someone who likes to have only one pen, this may actually be the last pen you ever need."

The Pen Addict - "To say I’m excited about the BIGiDESIGN Ti Arto is a bit of an understatement."

Customer Reviews

Based on 49 reviews
Not Forever

I got this pen November 2019. I was beyond thrilled with it. As an aspiring minimalist, I was most excited about never having to buy another pen again - just refills. 12 months into ownership, I could no longer take the two pieces apart - no pliers or machine could get them apart. These guys were kind enough to send me a replacement for the cost of shipping. I asked what to do to prevent that from happening again and they told me to regularly open the pen and grease it. I have been doing that. But, it is again stuck together. It's like the two pieces have fused together. I've emailed them twice over the last two weeks and have not heard anything back. Looks like I am back on the market for a pen that will last me longer than 18 mo. I'm sad. This was a great pen. The center of gravity was a little higher than I like and the ribs along the part that you hold were less than comfortable. But, otherwise it was great.

Miranda Morrison

Ti Arto : The Ultimate Refill Friendly Pen

Robert Slayton
Terrific Pen

This is now my favorite rollerball pen, out of dozens. Beautifully balanced, a joy to write with. One of the things I love is how I can search for the very best refill with your endlessly adjustable designs. Besides great machines and beautifully balanced, your pens are fun!

Also, your service is absolutely terrific. I needed a small part, and it went out right away, gratis.

Jason L.
It's a good pen

It's a good pen. Not my favorite pen, but not my least favorite pen. The elastic washers are annoying. I am constantly rubbing the outside one off when removing it from my pocket. It's lightweight and has a very fine tip. Unfortunately there is nothing exceptional about it.

It's a great pen (sometimes a pencil too)

I've had mine for a while now, but finally writing a review for it. It's been brilliant, feels quite nice (although honestly I do slightly prefer the grip on the Ti Post Raw), and can even hold 2mm graphite sticks, if you're wanting an indestructible pencil.

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