In Kaweco's history, the PERKEO pen appears around 1900. The Heidelberg pen factory catalog, later called Kaweco, describes the PERKEO as a convertible fountain pen. Today, PERKEO is designed to be an ink cartridge pen and also convertible. The matt octagonal cap and the 16-sided body harmonize perfectly with each other. The ergonomic triangular grip provides a comfortable grip for easy typing without fatigue. This coupled with its low price makes this pen ideal for students. Closed size: 14 x 1.3 cm. Size with the cap on: 15.5 cm. Material: matte ABS plastic. Medium size steel nib (M). Uses universal ink refills (European standard) and also plunger converter (not included). Weight: 14g. Made in Germany. It is presented in a plastic bag, without a box.