Kaweco AL Sport is made out of aluminum. 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 and BB, can be supplied with or without clip. Clip available separately. The AL Sport is supplied in the Kaweco tin pen case.