Based on this product's specifications, here are some alternatives and similar models
Elba A4 5-part white register dividers, PP 0.15 mm, model 03485
Summary description:
A set of Elba A4 register dividers with 5 parts, made of white polypropylene (PP) with a thickness of 0.15 mm. Designed to organize documents in A4 binders and folders, the durable PP material resists tearing and moisture. Tabs allow easy indexing and quick access to sections, suitable for offices, schools, and home filing.