Strong water resistance, can be used in wet and dry environments, the newly developed adhesive improves the wear resistance and smoothness of the sanding pad, high polishing efficiency, good finish and long service life. 90 * 90 mm triangular sandpaper with 6 dust removal holes - prevents clogging of the triangular sandpaper - suitable for triangular sanders, triangular grinders, triangular sanders. Triangular sandpaper with Velcro, easy and quick to stick, durable and practical, a good choice for triangular sandpaper for grinding and polishing. It is suitable for grinding, polishing and derusting metal and non-metal, leather, wood, plastic, stone, rubber, glass and other materials.