TWSBI Diamond Mini Classic M nib

From TWSBI Japan:

The TWSBI DIAMOND, the "face" of TWSBI, pursues the comfort and enjoyment of writing. Developed with the goal of "the best form that doesn't tire you out even after long hours of writing, at a low cost," it is TWSBI's flagship model.

《Mini Standard Series Classic》
The Mini Standard Series uses polycarbonate for the grip and piston, giving it a sparkling transparency.　The Classic has a formal and dignified design reminiscent of a London black cab, with the cap and tail painted in a deep glossy black.


【Main Features】
・Designed with a focus on "writing." You won't get tired even after writing for a long time.
・Beauty of the resin-coated polycarbonate body. Scratch resistant.
・A nib that has passed rigorous quality inspections, with the ultimate in writing feel and durability.
・A full-fledged piston-type ink filling system with a large capacity; approximately 2ml of ink can be easily filled.
・The transparent body allows you to see the ink level at a glance. (There is no need to open the cap or twist the grip screw to check the ink level.) A
rubber O-ring is fitted to the grip's screw thread to enhance airtightness when capped, keep the nib moist, and prevent ink leakage. This is proof of the thorough attention to detail.
Outstanding cost performance. High functionality and high quality at a low price.

[Size]
Approx. 118mm (closed) / Approx. 140mm (with cap on)
Maximum barrel diameter: Approx. 12.5mmφ Cap diameter: Approx. 14.5mmφ (excluding clip)
Weight: Approx. 19g
[Mechanism]：Piston filling system
[Nib width]：M (medium) 

[Specifications]
Pen: Stainless steel
Body: Resin

[Accessories]
Disassembly kit (mini wrench x 1, mini grease x 1)