Play to your dog's natural instinct to chew and engage his instinct of small and taste with BarkBone? Natural Instincts Original Nylon Chew! Made with artisan nylon, delicious BBQ flavor, and natural grain ingredients, each bone is flavor-infused to the core. The classic bone shape is curved for an easy paw grip to keep your dog engaged for hours of play. Helps prevent boredom and keeps your dog physically and mentally stimulated. Available in 2 sizes: Medium and Large. Chews are non-toxic and non-allergenic. Proudly Made in the USA.