BarkBone™ Natural Instincts Nylon Pig Ears satisfy your dog's natural instinct to chew with a healthier and cleaner alternative to a real pig ear. Made for aggressive chewers, the natural look and feel of the BarkBone Pig Ear is inspired by a real pig ear. Infused with the irresistible flavor and scent of delicious bacon. The unique shape of the BarkBone pig ears helps your pet scrape plaque and tartar off their teeth, promoting healthy dental hygiene. Premium nylon is FDA-compliant and non-toxic and non-allergenic.