Based on this product's specifications, here are some alternatives and similar models
MEGA rubber backing pad with hook-and-loop fastening 125 mm, model 27041
Summary description:
Rubber backing pad by MEGA, model 27041, with a 125 mm diameter and hook-and-loop (Velcro) fastening. Designed to attach sanding discs or polishing pads to compatible rotary or orbital sanders. Provides flexible support for abrasive media, helps maintain contact with surfaces and reduce vibration during sanding and polishing tasks in woodworking, metalworking and automotive refinishing.