Suitable for a variety of sanding tasks. Ideal for fine finishing most materials. Made from premium open coat aluminum oxide grain, heavy duty X-weight polyester cloth backing, delivering fast and long lasting sanding. Meddddium Precision engineered bi-directional tape joint, diagonal lap splice eliminates splice bump, the belt interface is firm and will not break. Anti-static and washable, plus an additive in the resin to resist loading, features good abrasion resistance, anti-clogging.