Size: Length - 5 1/2 inches capped; 7 1/16 inches posted.
A very well engineered and solid feeling TWSBI pen from Taiwan. This is a full demonstrator pen. You can see the differential piston filler working through the clear barrel and you can also see the nib and feed through the clear cap and gripping section. It is in excellent condition and looks like it has never been used. This is the Diamond 580 model with the faceted barrel, which feels so tactile in the hand. The pen has a red, slightly domed, cap top, a robust chrome plated pocket clip with a central raised ridge and a very wide chrome plated cap lip band. The cap band bears the pen's imprint. At the end of the barrel is the blind cap which you twist to operate the filling piston. The original box has a white plastic base and a clear plastic lid. It too is in excellent condition. The nib is stainless steel and in a broad point. In the box beneath the white "pad" is the original metal spanner and bottle of silicone grease for pen maintenance.