Based on this product's specifications, here are some alternatives and similar models
Manual sanding supply Proline 49065 — sanding belt 150 mm × 3000 mm, 1 pc
Summary description:
Proline 49065 is a manual sanding supply in the form of a sanding belt sized 150 mm wide and 3000 mm long. Supplied as a single piece per pack, it is intended for belt sanding applications on handheld or bench-mounted sanders that accept continuous abrasive belts. Suitable for material removal, surface preparation and finishing on wood and similar substrates.