[Compatible Machines]: It's an universal replacement pad for the most common orbital sander with 5 inch dia, 8 dust holes and 4 screw holes, such as for RS290, RS241, RS240, RS280/RS280VS, RS281VS, P411, 6021-21, 6034-21, Craftsman 315.112170, 315.116940, 315.116950, 315.112180, 315.279870 Random Track Sander.[Notice]: If your sander model is not mentioned, please do check if it fits your sander based on these information: 5 inch dia, 8 dust holes, 4 screw holes. And the distance between 2 screw holes center to center is 1-1/8 inch. (Screws and washers are not included)[Extra Hard Backing]: Our pad's backing is thickened and much harder than others. So, it's very difficult to be broken.[Easy Installation]: Built-in mounting thread for quick and easy installation. Hassle-free and attaches easily.Material:pucolour:blackPackage Contents:2 * orbital sander padsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.