Based on this product's specifications, here are some alternatives and similar models
Spleißschutzpresse EFB Elektronik 53100.5 with 12 crimp splice protectors, reusable plastic press
Summary description:
Hand tool set consisting of an EFB Elektronik splice protection press (model 53100.5) and 12 crimp splice protection pieces. The plastic press is designed for repeated use to secure and protect cable splices. Suitable for joining and insulating fiber or electrical splices, it provides mechanical protection and organised routing in installations.