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TWSBI Diamond Mini Transparent
TWSBI Diamond Mini Transparent
All about nib sizes
A shorter, pocket-sized version of the Diamond 580 fountain pen. The barrel is shorter than the standard Diamond series pens but the cap can be posted by screwing onto the end of the barrel to create a full-size pen.

Note that the nib section of the Diamond Mini is not compatible with other TWSBI fountain pens (eg. Diamond 540, Diamond 580, Vac 700 and Micarta).

Length capped = 117mm
Nib length = 19.6mm
Section length = 19mm
Section diameter (max/min) = 10.0/9.4mm
Barrel diameter (max) = 12.7mm
Total length (not posted, including nib) = 108mm
Total length posted (including nib) = 140mm
Weight = 20g
Nib material: stainless steel
Filling mechanism: piston
Packaging: Clear gift box with accessories