Writing device refill for pens contains a first fixing element at the rear end and a protective cap designed as an adapter for extending the cartridge contains a second fixing element

摘要

Writing device refill (2) contains a first fixing element (20) at the rear end (18) and a protective cap (4) contains a second fixing element (22). The protective cap is designed as an adapter for extending the cartridge. The two fixing elements engage with one another. Preferred Features: The protective cap has a hollow space for receiving and fixing the front end of the refill. The refill has a length which is essentially shorter than the total length (26) of a commercial refill.