[Compatibility]: Standard Replacement Pad for RS290, RS241, RS240, RS280/RS280VS, RS281VS, P411, 6021-21 & 6034-21, 315.112170,315.116940, 315.116950, 315.112180, 315.279870 Random Track Sander. [Upgrade]: We are the professional manufacturer for sander pads. We UPGRADE the black pad. Now it has thickened and harder backing, better cushion rubber and denser than the original pad. [Notice]: If your sander is not mentioned, please do check if it fits your sander based on these information: 5inch dia, 8 dust holes, 4 screw holes. And the distance between 2 screw holes center to center is 1-1/8inch. (Screws and washers are not included) [Easy Installation]: -in mounting thread for quick and easy installation, and for increased abrasive paper grip. [Prevent Damage]: Prevents damage to disc holders. Ensures a smooth, result. color:Black Material:rubber Package Contents: 1 x 5-Inch 8-Hole and Loop Sander Backing Pad Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.