Aluminum base for exact flatness and long lasting durability, spring loaded paper clamps secure all types of paper, sealed rocker switch resists wear, soft grip handle. Specs: 120V/60Hz, no-load speed 12000 OPM, Base size is 4"x4-5/16", orbital diameter 1/16", weight 3.3 lbs. Includes: 10 ft. cord, (1) dust box, (1) dust extraction adapter, (3) sanding paper, (1) punch.