Designed specifically for teething puppies and moderate chewers, the NOSH FLEXIBLE Chew Bone combines durable nylon with flexible TPR. Strong enough to withstand the enthusiastic chewing of a puppy yet soft enough for puppies' sensitive gums. The NOSH FLEXIBLE Chew Bone provides long-lasting enjoyment, keeping your dog engaged and challenged with the added benefits of exercising jaw muscles and helping maintain oral hygiene.