This heavy duty scrubber is designed to be used in those hard to reach areas where the traditional scrubber can't get to. It comes with a battery, battery charger, battery harness, light duty brush, padholder disc, white polishing pad and a black stripping pad. Spins at 450 RPM's. The padholder disc is 8" in diameter. The battery has a 4 hour life on one charge. It is a light weight piece of equipment and easy to use. A must for any custodian.