Designed specifically for active chewers, the Zeus NOSH STRONG Chew Bone is made of tough, durable nylon that satisfies a dog's natural chewing instinct while providing long-lasting enjoyment. Strong enough to withstand even the most enthusiastic of chewers, Zeus NOSH STRONG will keep your dog engaged and challenged with the added benefits of exercising jaw muscles and helping to maintain oral hygiene. Key Features : -For active chewers -Made from 100% nylon -Satisfies natural chewing instinct -Helps prevent boredom and destructive chewing -Safe and durable -Long-lasting enjoyment -Flavor throughout - For dogs 10-20kg (22-44lbs) Medium: 15cm / 6in