Based on this product's specifications, here are some alternatives and similar models
Manual sanding supply Proline 49056 — length 50000 mm, 1 pc
Summary description:
Manual sanding supply Proline 49056 is a single-piece abrasive accessory with a length of 50,000 mm. Designed for manual sanding tasks and surface preparation, it serves as replacement sanding material for compatible hand-operated sanding systems. Suitable for extended runs and workshop use where a long continuous abrasive strip is required.