The BIONIC Bone satisfies your dog’s desire to chew and stimulates their senses with thick ridges on major chew areas. With patented defensive geometry, the BIONIC Bone has been crafted to withstand heavy chewers. Key Features: Perfect for hiding your dog’s favorite treats or stuffing with peanut butter BIONIC ridges allow dogs to satisfy their inherent urge to chew All natural, BPA FREE, no lead and no Phthalates Floatable Bounces Dishwasher safe Size: Large Dimensions: 15cm (6in) Suitable for dogs between: 30 - 60+ lbs (13 - 27+ kg)