What dog can resist yummy peanut butter? Made with tough, durable nylon, the Power Chew DuraChew Peanut Butter Chew Toy was crafted with powerful chewers in mind. It provides long-lasting enjoyment, satisfies the natural urge to chew, and encourages positive chewing habits. Plus, the bristles raised during chewing promote clean teeth and help control plaque and tartar buildup. Go ahead and give your dog a Nylabone! Made in the USA! For dogs up to 25lbs.