I am a professional mechanic of over 35 years experience, so I know what I am talking about when it comes to auto tools. I recently rented a 500 lb tranny jack from this store, that jack was extremely dangerous P.O.S. It was bent out of shape, wore out and will not hold tranny straight when in the up position. someone is going to loose a hand or fingers with continued use of this jack . I told them that when I returned the jack. They told me nobody has ever complained abut it before. BS