Double the flavor, double the chewing! Made with tough, durable nylon, these Power Chew DuraChew chew toys were crafted with powerful chewers in mind. They provide long-lasting enjoyment, satisfy the natural urge to chew, and encourage 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 50lbs.