The JW Chompion chew toy is designed for champion chewers. It exercises the teeth and jaws while the nubbins on the dumbbell help keep gums and teeth clean. Also great for tossing, bouncing and rolling fun. Made with 100% non-toxic natural rubber. Available in assorted colors, please let us choose. For dogs up to 15 lbs. Light Weight approximately 5″ X 1.75″ X 4.75″.