This buffer/polisher is great for buffing or polishing aluminum, jewelry, chrome, metal parts or plastic parts for a refined appearance. This buffer/polisher comes with 2 replaceable and washable buffing pads/wheels and variable speed control of 2000 up to 7000 rpm, which allows you to adjust your buffing at the speed you want. Simply screw the pads directly onto the threaded mandrels and buff away any imperfections.Features include:Bench Buffer Polisher Motor: 110V/60Hz, 200W, 1.67Amps, Buffing Speed: Adjustable 2000 and 7000 RPM Buffing Wheels: (2) 4" Diameter x ?" thick wheels with ?" center hole. Threaded Mandrels: (2) mandrels for easy mounting and replacing buffing wheels. Dimensions: 10.75 x 4.5 x 6 inches