"Operate the Black Widow Motorcycle & ATV Combo Jack with either compressed air or by using the hydraulic foot pedal. The BW-0102 can lift up to 1,500 pounds with the hydraulic foot pedal or with compressed air, between 5.375"" to 16.75"" off the ground. For shop convenience, the handle is removable and rear caster swivel wheels help to maneuver the 80-pound jack to different locations. Safety features include a 3 position safety lock, 12"" by 2.5"" non-slip rubber lift pads to protect the motorcycle frame and keep it stable, a rubber padded foot pedal, and tie-down locations with safety straps to secure the motorcycle or ATV in place during lifting."