It's triple the fun and very knobbly. It's our incredibly yummy Trio Bone. Like all of our nylon chews, this TastyBone product has been tested on the most vigorous of chewers. Made from 100% virgin nylon, it is guaranteed to last. Uniquely infused with irresistible flavors right through to the core, your dog will never get bored, as the flavor will last for the lifetime of the bone. With every bite your dogs' gums and teeth become stronger and healthier, protecting against infections, tooth loss, and those vet fees! This bone has a lip-smackingly delicious Peanut Butter flavor and is designed for large dogs.