These Deals On Wings sanding discs additive in the resin to resist loading, anti-static, effectively reduce the dust blocking, outstanding in durability. Made from top quality fused alumina grain, delivering fast and long lasting sanding. easy to stick to the random orbital sander, but will not fall off when installed in use. Suitable for most 5-inch 8-hole random orbit sander: DeWalt DW421/DW423/ DWE6421K/DWE6423K, Ryobi RS290G, Bosch 3107/3725/ROS20VSC/3725DEVS ROS10, Makita B05010/BO5041K, Ridgid R26011, Black & Decker BDERO100 and more.