The JW Hol-ee Roller X extreme dog toy is a unique, thick natural rubber ball for dogs. It’s tougher and thicker than the traditional Hol-ee Roller. This product is designed for tough dogs and tough chewers. The Hol-ee Roller X has strategic patented honeycomb cut-outs covering the ball so the dog can grab it and pick it up. It’s also great for games of tug-of-war! The cut-outs can also be easily filled with treats or small toys for long-lasting boredom-busting fun! All JW pet products are intelligently designed with a commitment fun first while providing quality, non-toxic toys for your pets. Enhance games of fetch and tug-of-war by stuffing the Hol-ee Roller ball with a variety of treats and toys Soft, open rubber design allows pets to breathe through the toy for safe, extended play Made of natural, non-toxic rubber for pets’ safety with a patented, seamless design ensuring durability Boosts dogs’ IQ as they work to remove treats of different shapes and sizes Look for the iconic honeycomb shape that makes the classic JW Hol-ee Roller a truly unique, do-it-all toy