Play to your dog's natural instinct to chew and engage his instinct of smell and taste with BarkBone Natural Instincts Original Nylon Dog Chews Made with artisan nylon, REAL bacon pieces, and natural grain ingredients, each bone is flavor-infused to the core. The classic bone shape is curved for an easier 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: Large and Medium. Proudly made in the USA Made with artisan nylon, REAL bacon pieces, and natural grain ingredients. Each bone is flavor-infused to the core. Cclassic bone shape is curved for an easier paw grip. Helps prevent boredom and keeps your dog physically and mentally stimulated. Proudly made in the USA.