Grriggles® Rubber Bones are tough rubber chew toys for dogs that help to naturally clean teeth. A great toy for active chewers. # Made from high-quality hard rubber # A long-lasting toy that is great for active chewers Material: Rubber Bones are available in two sizes: Large measures 7 1/2" X-Large measures 9" AVAILABLE IN RED, BLUE, GREEN, BROWN AND PURPLE