The Kaweco Perkeo fountain pen, in pink, has a Medium (M) nib, with a fuller and more expressive stroke, a good option for signatures and looser writing. The Perkeo is Kaweco's modern reinterpretation of the pocket pen concept, with a larger body than the Sport (13.9cm closed and 15.7cm with the cap attached) and a snap-cap closure, eliminating the need for screwing. The injected resin body maintains the characteristic octagonal design of the cap, combined with a 16-sided groove on the bottom that facilitates grip. It uses a #5 stainless steel nib and the same international short cartridge or converter system as other Kaweco pens. It is a preferred option for those who prefer a fuller stroke in this color.