Based on this product's specifications, here are some alternatives and similar models
Sanding discs 3M 39066, 150 mm diameter, pack of 50
Summary description:
3M 39066 sanding discs with 150 mm diameter, supplied in a pack of 50. Designed for surface preparation and sanding tasks on wood, paint and varnish layers and metal where compatible. Provide consistent abrasive performance and are suitable for use with compatible hook-and-loop backing pads and orbital sanders. Practical for professionals and DIY for efficient material removal and surface finishing.