Based on this product's specifications, here are some alternatives and similar models
Ring binder Elba PP A4 black spine 35 mm 2-ring with label (pack of 10)
Summary description:
Elba PP A4 ring binders are A4-size two-ring file folders with a 35 mm spine, made from polypropylene (PP) and fitted with a label on the spine. Supplied as a pack of 10, these binders are intended for organizing and storing punched documents, office paperwork and archive material, offering a lightweight, moisture-resistant solution for everyday filing.