I bought this to help move some timber trunks that I had cut down last year. They were too big to handle by myself. I was pretty sure my 40 year old John Deere tractor could lift them with the loader but I wasn't sure. I started out with a medium log, 20" in dia and about 4' long. No problem at all. So, I was wondering if my tractor could pick up one of the largest logs along with this hook. I grabbed onto a log about 34" - 35" in dia and about 4' long. Both the tractor and hook worked perfectly. The log was a little larger in dia than the hook could reach easily so I ended up grabbing it by the end and dragging it to my wood pile. I am very happy with this hook.