Based on this product's specifications, here are some alternatives and similar models
Nameplate Bantex 100400217 — non-metallic white cardboard, 210×75 mm, pack of 50
Summary description:
Non-metallic nameplate Bantex 100400217 made of white cardboard, sized 210 × 75 mm. Supplied in packs of 50 pieces, these flat nameplates are suitable for labeling documents, folders, files or small packages. Lightweight and disposable, they provide a simple writable surface for names, codes or short notes in office and storage environments.