Description Nylabone Extreme Original Bone Shaped Dog Chew will satisfy your dog’s natural urge to chew and provide hours of fun. Developed with a hard texture that wears down slowly for a splinter-free experience, the Nylabone DuraChew has been made specifically for powerful chewers and will help clean their teeth, and control tartar and plaque build-up. Made with an allergen-free peanut flavour.