Based on this product's specifications, here are some alternatives and similar models
Grinding Accessory Proline 32510 — 10 cm Diameter Disc for Angle Grinder
Summary description:
Disc accessory for angle grinders by Proline, model 32510, with a diameter of 10 cm. Designed as a replacement or spare grinding/sanding disc compatible with standard handheld angle grinders. Suitable for metal and general-purpose surface work where a 100 mm disc is required. Practical for cutting, grinding or surface prep in DIY and light professional tasks.