Bests & Worsts Reviews from Amazon

My kitten Toby loved this tree when we first built it for him. He was going crazy running up and down all levels and playing with the ball. About 2 hrs into his playtime, I heard him crying and hissing. I ran over to find him tangled in the string that the ball is attached to and hanging by it!!! I quickly unwrapped him and realized the string was around his neck and stuck under his claw. His claw was bleeding and he was so scared. I immediately cut the ball of and now he is very afraid of the tree. I suggest to put the ball at a lower level so this does not happen to another cat. I cant imagine what would of happened if I was not home to save him.