Rubber Chew Toy Dog Bone Toothbrush Specially designed nubs and recesses on this bone make it a great way for your dog to keep his teeth clean. Bone-shaped "toothbrush" helps remove plaque, debris and tartar all the way to your pet's gum line. Add pet toothpaste to the bone for even better cleaning. Helps keep your dog's breath clean and fresh, too. Rubber. Measures 6"L x 2-1/4"W x 1-3/4"H.