I purchased this item to lift a 700# item. The rope began to fray with 150# of lift. When I got the item at about 200# of lift, the plastic roller on the top block fractured.your comments about not having it "tightened" or being used correctly is mute... all was checked and double checked, and even triple checked.The unit failed at about 200#. Maybe the advertizement is a mistype and should read 200# instead of 2000#.It's broke... can't get my money back... not worth the hassle.