Professional tool for commercial or occasional use High quality aluminium oxide grit bonded to a hook and loop paper back, with long life and excellent anticlogging characteristics Suitable for use with 3" 75mm backing pads with the hook and loop system For use with wood / paint / metal / plastic Fits almost 3" 75mm sanders 75mm round with no holes The listing is for one hundred sanding discs. SET INCLUDES THE FOLLOWING - 20 x 40 Grit sanding disc - 20 x 80 Grit sanding disc - 20 x 120 Grit sanding disc - 20 x 180 Grit sanding disc - 20 x 240 Grit sanding disc