Flexible composite material, ergonomic design, comfortable hand feeling. The base size fits any 5-inch sandpaper sheet, making it easy to replace the disc. It's the perfect sanding partner. The sides are slightly inclined and can be easily sanded in grooves or narrow areas on flat or curved surfaces. The strong hook and loop attachment prevents the backing plate from shifting and rotating, but the sand disc can be easily removed. The front side is a sticky disc, which can be used to stick various backing polishing agents, such as dry polishing pads, sponge sand, wet polishing pads, etc. It is suitable for the spraying industry, furniture industry, automobile industry, production line and other fields. Very suitable for woodworking, hobbies, crafts, car bodies, plasterboard, shops and cars.