Based on this product's specifications, here are some alternatives and similar models
Angle grinder accessory Dedra DED79471 — 12.5 cm diameter, 1 pc
Summary description:
Accessory for angle grinder Dedra DED79471 with a 12.5 cm diameter, supplied as a single piece. Designed to fit compatible angle grinders for cutting, grinding or surface preparation tasks. Compact size suitable for general metalwork, masonry and DIY jobs where a 125 mm accessory is required. Provides a straightforward replacement or spare part option.