Chuckit Tennis Ball Description Every dog owner has dirty, chewed up tennis balls lurking under the couch. Give your pooch a tennis ball meant just for him. Chuckit! Tennis Balls are made from durable material to stand up to your high-energy pup. And they float in water which makes them perfect for trips to the beach. They even come in multiple sizes so no matter how big or small your dog, Chuckit! Tennis Balls will be a big hit. Side Effects & Warnings Supervise your pet and inspect toys regularly. If toys become damaged, discard toys and pieces. Do not let dog attempt to swallow toys or any pieces of toys.