Features: *Quality hook and loop backing pad *Suitable for air sander DA and other orbital sanders. *Use with hook and loop , polishing sponges, bonnets and sanding discs *Stable and durable . Easy to use .A variety of sizes to meet your need Specification: *Name:Backing Pad *Diameter: 3inch/75mm *Shank:6.35mm *Male thread size:1/4-20 *Maximum operating speed: 1500 RPM *Scope of application:used in artificial stone,furniture and wood products,metal,automobiles,etc.Grinding and polishing *Quantity: 1pc Package Contents: 1 * Backing Pad Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.