This soft natural rubber Expander Wheel conforms to slightly contoured pieces and leaves a bright smooth, uniform finish. The abrasive bands stay firmly in place because centrifugal force expands the rubber wheel. Comes with 5 assorted belts. - Great at smoothing and leveling the surface, without gouging - Perfect to remove scratches and imperfections from the trim surface - Work on contoured finishes - Leaves behind a smooth and uniform finish - Designed to run at 1,800 rpm so excessive cutting does not occur - Has push out adaptors for 1/2”, 5/8, 3/4 and 1” shaft sizes - Comes with 5-1.5" x 18-15/16" belts - one of each grit size (80, 120, 220, 320 and 400) Additional Belts (pack of 5) are also available