The Booda Bone X-large Rope is of the highest quality. I have a wonderful pitbull. Buster is his name. Buster loves to play with this Booda Bone Rope. He can play alone or with me. We can tug on this rope all day and it last. Buster and I play with the rope for a long time during a play time. The other ropes I have bought do not last one play time with Buster. I have taught him hide and seek with the Booda Bone rope. I have a couple of the ropes in different main colors. buster never gives up on finding the rope. He always finds it .Buster always wins tug of war with the rope. The Booda Bone rope does not come apart easy at all. The knot on each end stays true also.The strength of the rope is as strong as Buster's jaw. I can not but my son will lift Buster while he is locked on the Booda Bone rope and spin him around. When the Booda Bone Rope is on its "last rope", Buster will have nothing to do with it. I do not worry about the rope coming apart and Buster choking. The Booda Bone Rope is just that strong.