Sanding discs are 6" in diameter with a velcro backing (otherwise referred to as hook & loop). Furthermore these discs are perfect for any 6" orbital or rotary sander with the velcro backing
Each box comes in a pack of 50 discs. available in 180, 220, 320, 400, 600 grits and 800 grits.
We recommend pairing it with the sanding backing pad.