Our 3-Ton Professional Floor Jack’s low-profile design allows to roll it under as little as 3 3/4" of clearance. The protective sleeve along the lifting arm and the rubber-padded saddle will prevent damaging the vehicle when pumping. When your work is done, simply pull and twist the handle counterclockwise for a smooth lowering. This 2-step sequence makes this hydraulic floor jack safer to use in a busy working environment.* Get an extra 3" of lifting height. Compatible with our floor jack extension (MFJ-E).SAFETY WARNING: Never get under a vehicle that is not supported by a certified and proper jack stands. Validate lifting capacity before use. Correct and proper use of floor jacks and jacks stands can prevent injury and/or death.