【Alumina Sanding Sheets】Strong water resistance and can be used in wet and dry environments, Newly developed adhesive improves the abrasion resistance and smoothness of the sander pads and has high polishing efficiency, Good workmanship and long service life. 【Triangle Sandpaper Size】Triangle sandpaper 90 * 90 * 90 mm, with 6 holes for dust extraction，Prevents clogging triangl poncag . 【Backing】Triangular sanding sheet Hook and loop sanding sheets, easy and quick to stick, sturdy, durable and practical, triangle sanding good choice for sanding and polishing. 【Mixed 70 Sandpaper Pads】Abrasive 90 Each package contains 70 triangle sanding pads, 7 grades from coarse to fine, 10x 60/ 80/120/180/240/320/400 grits, almost meet all your general requirements polishing. 【Wide Application】Triangular Abrasive Suitable for grinding-polishing and derusting of metal and non-metal, leather, wood, plastic, stone, rubber, glass and other materials, etc. Note: The data are all measured manually, please