The Mammoth Pet Products 4-Knotted Cotton Rope and Tug Dog Toy - Multi-Color is available in Large and Extra-Large and is a rope tug toy designed for big dogs or multi-dog play. It’s made of thick, cotton-blend rope with four large knots spaced along its length. This jumbo tug is perfect for serious games of tug-of-war and can endure strong pulling. Chewing on the rope also helps clean your dog’s teeth, making playtime beneficial for their dental care. Available in Multiple Sizes