The sanding pads are made of high quality material to provide efficient and long-lasting sanding. Sanding disc features quality abrasion resistance, anti-static and anti-clogging. The aluminum oxide grain provide fast cut and a smooth to your projects. Back of napping makes grit removal and replacement quick and lengthens the life of each disc. Buckle design makes sandpaper installation and removal quicker and easier, maintains firm adhesion, and ' fall off when used. Pre-punched 8 holes designed for efficient dust extraction. Tips: The higher the number, the finer the grit. Perfect for grinding, polishing and finishing of complex surfaces such as metal, non-metal, rubber, wood, leather, plastic, stone, glass, etc. Suitable for most 5-inch 8-hole random orbit . For example, it works with ROS20VSC 3725DEVS ROS10, DWE6421K DWE6423K, RS290G, 382, BO5041K, Black & BDERO100, 7492-02 and more. Diameter: 5 inch / 125 mm Number of Holes: 8 holes Back Design: Hook and loop buckle color:Wine red Material:gravel Package Contents: 50 x Hook and Loop Discs (10 grits of each size (five grades: 80, 100, 120, 180, 320 grit)) Only the above package content, other products are not included. Note: Light 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.