EcoFetch Fetch Ball Dog Toy: These high-performance balls are designed with the environment in mind! Made from 40% RCS certified recycled rubber and maintaining the iconic bright Chuckit! colors. Each ball has its own unique pattern, so no two balls are alike! Run further, fetch longer: Made for Chuckit! Dog Ball Launchers for extended throws, these durable and bouncy dog balls create an exciting game of fetch for you and your dog. Better than standard tennis balls, these ultra bouncy balls will excite any fetch experience. Tough and Durable: These dog toy fetch balls are designed with a thick rubber core that can stand up to rough play yet is soft on dog’s mouths. Not intended as a pure chew toy, always supervise your dog when playing with any toy. Sizing matters: Size medium measures 2.5" in diameter and is best suited for dogs weighing 20-60 lbs. The ball should be small enough for your dog to carry, but large enough that the ball can't completely fit in their mouth. When in doubt, buy a size up! Make Fetch Happen: Chuckit! Performance toys are designed with you and your dog in mind; try our full range of interactive indoor and outdoor dog toys that enrich the human-animal bond and engage your dog in the game of fetch. Try our full line of ball launchers, fetch toys, chew toys, water toys, indoor toys and many others for your dog.