Based on this product's specifications, here are some alternatives and similar models
Sanding discs Proline 11×100 mm, 6 pcs — abrasive discs for rotary tools
Summary description:
Sanding discs Proline 11×100 mm, set of 6 abrasive discs designed for use with rotary tools. Each disc measures 11 mm inner diameter and 100 mm outer diameter, suitable for material removal, surface preparation and finishing on wood, metal and plastics when compatible with the tool. Compact pack for workshop or hobby use.