Self-locking velcro grinding wheels are designed for mounting on a platform with installation on polishing, grinding machines, electric drills. Circles differ in the size of the grain fraction, have different outer diameters, have the type of manufacture: with perforation (with holes), for professional use on power tools with exhaust system (vacuum cleaner), and without holes (which has a wide range of uses in domestic conditions). Purpose: for processing of putty, paint, varnish, wood, plywood, metal, plastic