Lamy Inspired Ergonomic Pen Body

Designed for Paper Mate Inkjoy cartridges.

This ergonomic tri-grip, tapered casing is inspired by the design of the Lamy Safari, bringing a more refined and comfortable feel to the InkJoy refill. The tri-grip section naturally guides your fingers into a consistent position, improving control and reducing strain during long writing sessions. The tapered shape further enhances comfort by allowing a more relaxed grip and better balance in hand.

That combination of performance and price is exactly what makes the Paper Mate InkJoy refill perfect for a casing upgrade. Since the refill already delivers smooth, reliable writing, improving the outer body has a much bigger impact on the overall experience.
 

Instead of paying for an expensive pen, you get the best of both worlds: a high-quality writing feel from the InkJoy cartridge, paired with a more ergonomic, premium casing. It turns a simple, low-cost refill into something that feels significantly better in hand, making upgrades like this especially worthwhile.

Note:
The tip may have to be enlarged due to printing and manufacturing tolerances, use a appropriately sized peg, file or similar cylindrical obejct to broach the hole slightly larger.