Durable Material: This sanding disc backing pad is made of rubber material, self adhesive plate design, durable to use. Practical: The polisher backer plate is durable and efficient, the finish is high, and the effect is good, removes rust, paint, for roughening, and deburring. Feature: The front has a screw thread that can be screwed, can also be match with the connecting rod installed in the drill. Widely Used: The backing pad is suitable for artificial stone, furniture, wood products, metal, automobile and other articles polishing and polishing. Easily Use: Lightweight and portable sanding disc pad, easily to install. Specification: Material: Rubber Package Includes: 1Backing Pad Note: Please allow slightly errors due to manual measurement and different monitors.