Kaweco Perkeo Fountain Pen All ClearThe Perkeo features everything you'd expect from Kaweco quality workmanship, the familiar octagonal cap and barrel and a stainless steel nib plus it's reasonably priced. It has a comfortable triangular grip and takes standard international ink cartridges. It will also take the Kaweco Standard converter for use with bottled ink. Writing system: Fountain pen Material: plastic Colour: Transparent