The ATD Tools Vehicle Door Jack Lift, No. 6557, features powder coated steel construction that provides strength, durability, and corrosion resistance. The Vehicle Door Jack Lift has 4" polyurethane casters (two swivel and two with brake) for easy maneuverability. The support size is 30" length by 24" width. The support pads height adjusts from 7" to 30", and the width adjusts from 8" to 20". The lift weighs 44 lbs and can hold up to 300 lbs.