Feature:1. [HOOK AND LOOP DESIGN] The backing pad is a hook and loop design, which can easily remove the disc without wearing the overall strength.2. [APPLICABLE MATERIALS] Can be used for most pad materials with hook and loop backing, such as foam, wool, paper, microfiber, etc.3. [MADE OF PU] The backing plate is made of PU material, soft texture, environmentally friendly and durable.4. [HIGH EFFICIENCY] The maximum operating speed is up to 12000RPM, which can withstand high frequency, fast and efficient.5. [STANDARD SIZES] With standard 5/1624 thread specifications and general size, suitable for most pneumatic sanders.Specification:Item Type: 5in Sanding PadMaterial: PUPurpose: Used for polishing, finishing and sandingColor: YellowPad Size: 5in (manual measurement has an error of 1-3mm)Thread Specification: 5/16-24Maximum Operating Speed: 12000RPM.Package List:1 x Backing Pad