TWSBI will only produce one batch of the 580 AL Turquoise, therefore quantities are limited.
Piston-filling mechanism (uses bottled ink only).
Nib length = 18.2mm
Section length = 21mm
Section diameter (max/min) = 10.0/9.3mm
Barrel diameter (max) = 13.1mm
Total length (not posted, including nib) = 129mm
Total length posted (including nib) = 175mm
Weight = 29g