I ordered this late at night & thought I was buying an all aluminum floor jack because I have a bad back.  My steel floor jack weighs a ton.  Well when it arrived,  UPS needed two people to carry it to my front door.  Yikes!  Amazon made it right, so in this case, Amazon gets 5 stars as they understood and sent UPS out to return it.After numerous replies to my poor review, I have decided to change it as my review was not on the jack operation itself which in retrospect was not fair.  I based my review simply on the weight of the jack that was delivered.A good floor jack is worth its weight in gold.  I've read many of the other reviews from very happy users.  In the case of this floor jack, I never even lifted it.  Two UPS delivery people brought it to my porch as this one weighed over 70 lbs (UPS or the shipper had affixed a heavy package warning sticker).  I purposefully rated the jack one star to bring to people's attention that the jack is heavy and it was not clear.  Some people were also  surprised that the jack weighs as much as it does when I read their reviews.The shipping weight of the jack is only 62 lbs according to the specs for this jack.  I have no idea why UPS put a heavy item (required for items over 70 pounds) warning label on the box.  This happened quite a while ago & I simply remember the two UPS guys it took to carry it along with the UPS warning sticker which stated: heavy package over 70 pounds.  UPS also sent out two people when it was returned.I never opened the box or used the jack.  It is very possible the wrong jack was delivered to me.  As for the operation of this jack I will defer to the many others who have used it.  I encourage everyone to read all the reviews.  The bottom line is if I had to do it all over again & had a need for a good 3 ton jack, I'd probably purchase an all aluminum.  I noticed one on Amazon that weights 56 lbs has a shipping weight of 59 lbs.Arcan ALJ3T Aluminum Floor JackThe more I think about this incident, the more I wonder if I was shipped the wrong item.