The BIONIC Bone Toughest Chew Indestructible Fetch Rubber Dog Toy features a bone-shaped chew toy built to satisfy your dog’s natural urge to chew. Featuring thick ridges and an ergonomic shape, it stimulates gums and helps clean teeth as pups gnaw on it. Constructed from Bionic’s ultra-durable, BPA-free rubber, this bone can be stuffed with peanut butter or treats for added interest and is tough enough to withstand serious chewing while providing long-lasting entertainment.