What You Get 2 1/4" Shank Sanding Pads + 2 Foam Polishing Pads Wide Application: Works with most rotary tools such as die grinders, angle grinders, air drills, electric drills, ideal for metal unwinding, glass and ceramic, marble, automotive and wood floor polishing, etc. Pad Diameter: 50mm - Pad Thickness: 13mm - Shank Diameter: 6.35mm Polishing pads made of good quality sponge, perfect for uneven surface polishing, protect against damage to the back pad, convenient to replace. Sanding disc pads made of polyurethane material, good flexibility to minimize heat transfer, not easy to break, durable for a long time. 6mm Hook and Loop with Soft Foam Layer Polishing Pad, Rotary Tool. The sander backing pad belongs to a power tool accessory, suitable for sander, grinder, electric drill. The strong hook and loop attachment prevents shifting and rotation, while allowing easy removal of the sanding disc. The soft foam buffer pad can minimize heat transfer, while it flexes just enough to fit