Introducing our 4 in. hook and loop backing pad, an essential accessory for angle grinders. With a 5/8 in. 11 thread, it's perfectly compatible with your angle grinder. Made of high - quality polyurethane, this backing pad ensures excellent balance control, enabling smooth and vibration - free operation. The strong hook and loop fastener lets you quickly attach or replace sandpapers, and the tightly arranged hooks prevent the pad from slipping or falling off. It has a diameter of 4 in. (100mm) and can reach a maximum rotation speed of 12500 RPM. This sanding backer is incredibly versatile, suitable for polishing metal, non - metal, stone, furniture, wood products, floors, walls, and cars. Whether you're a professional or a DIY enthusiast, it will bring great convenience to your projects.