AST4606 Features: -Dual action random orbital backing pad for car detailing. -With unique tapered 29-degree edge, offers excellent edge flexibility. -Works with angle DA random orbital sanders. -Pad is made of polyurethane5/16"-24 UNF thread. Maximum RPM: 10,000.. Product Type: -Backing Pads. Use: -Buffing/Polishing. Quantity: -Single. Dimensions: Overall Product Weight: -1 Pounds.