Features Preferred Materials: Premium PU material construction for a variety of applications, customizable to be rigid or flexible, but never rigid. Reliable product: The center hub, formed with steel struts, can withstand high frequencies while achieving a perfect surface finish. Fits: Universal standard back pad size, durable enough to fit most air sanders in woodworking, garage or industrial environments. Practical: The back panel with hook and loop function makes it easy to close and remove the disc without wearing down the overall strength. Can be used on most cushion materials with a hook and loop back panel system. Efficient: The fast and durable oscillation speed can withstand high frequency oscillation for a consistent and smooth surface. feature: Preferred Materials: Premium PU material construction for a variety of applications, customizable to be rigid or flexible, but never rigid. Reliable product: The center hub, formed with steel struts, can withstand high frequencies while achieving a perfect surface finish. Fits: Universal standard back pad size, durable enough to fit most air sanders in woodworking, garage or industrial environments. Practical: The back panel with hook and loop function makes it easy to close and remove the disc without wearing down the overall strength. Can be used on most cushion materials with a hook and loop back panel system. Efficient: The fast and durable oscillation speed can withstand high frequency oscillation for a consistent and smooth surface. Specification: Item Type: Hook And Loop Backing Plates Material: PU Purpose: Used for grinding, finishing and polishing Color: Yellow Package List:1 x Hook And Loop Backing Plates Package List 1 x Hook And Loop Backing Plates