Clean your dog’s teeth the fun and easy way with Dogit Knot-A-Rope Tug Toy, a 100% cotton chew toy. Regular chewing gently cleans teeth and massages gums, reducing plaque buildup and preventing gum disease. Fun to toss, chew and fetch, this tug toy provides hours of healthy play for you and your pet. The bone is made of biodegradable material and is machine washable.