Nylabone's Puppy Teething Keys chew toy is made with soft, puppy-friendly material to satisfy the chewing needs of teething pups and encourages positive chewing habits from a young age. Plus, the bristles raised during chewing help clean teeth and prevent tartar build-up. The perfect puppy teething toy for pups who love to chew! (This chew toy is not for puppies with adult teeth or for powerful chewers.)