Its floating handle allows the unit to maintain an constant floor pressure. Power is supplied by a direct drive 1.5 HP rectified DC motor, eliminating the need for belts and gears that require servicing. Two sets of large 5" wheels provide superior mobility, and a high quality cast aluminum chassis will withstand years of punishment in commercial burnishing applications. For added convenience, a 75-foot power cable means more burnishing and less searching for wall outlets.