INTENDED USE:For safe handling and positioningof automotive engines weighingup to 1,250 pounds.FEATURES:50:1 ratio gearbox activated by hand crank easily turns the 360 degree rotating head to the desired work position.Fully adjustable engine mounting head.Two rigid wheels in back and two swivel caster wheels in front provide maximum stability and support. One locking caster wheel secures the stand in the desired work location.Polyurethane wheels provide protection for expensive tile and epoxy floors.Telescopic base locks into any one of four different positions to extend the length of the stand for added stability when required.