Kaweco AC Sport is made out of aluminum with a carbon inlay. Closed the pen measures 10,5 cm open it measures 13,5 cm. The Kaweco Sport is used with ink cartridges or a converter so you can also fill your pen from a bottle and can be supplied with these nib sizes EF, F, M, B en BB. Clip available separately. The AC Sport is supplied in the Kaweco tin pen case.