Hoover CH81010 Ground Command Super Heavy Duty 21-Inch Commercial Floor Machine Offers impressive cleaning power with a precision-balanced 1.5 HP 66-frame motor and a high-torque transmission Offers easy access to motor plugs, which are located at the base of the handle Boasts with a super-thick, non-marring bumper, so you don't have to worry about damaging walls or baseboards Features non-conductive dual triggers, which help eliminate the risk of electric shock Internal lock switch located on the handle