With our heavy-duty ZippyTuff line, your pup can enjoy hours of rough and tough playtime! Made with flexible yet durable TPR material. Give your hyper pup the long-lasting playtime he loves with ZippyPaws ZippyTuff Squeaker Balls! Made of durable rubber and a loud squeaker inside, these colourful balls pack plenty of squeaktastic fun to keep your sidekick engaged both mentally and physically. It bounces, providing your pal with the exercise he needs, and it comes in more than one bright colour option, so it is easy to keep track of.