Double stuff the Double-Tuff®. We double-dog dare you! Inspired by ourextra tough Diamond Plate balls, the Double-Tuff is made from the samedoggie-durable, bouncy, buoyant and mint-scented Orbee-Tuff® material. Itsasymmetrical “doubled” design makes for amazingly unpredictable bounces,making it a toy that can stimulate a dog mentally much more than a standardfetch toy. Size: S (75mm), M (100mm), L (125mm) - Chew-o-meter: rated 5 outof 5