These are not your everyday tennis balls. They are BAYDOG balls! Features FOR ACTIVE DOGS: A fun addition to your dog’s exercise plan with the added benefit of satisfying their prey drive in a healthy way. DURABLE: Non-abrasive felt won’t wear down your dog’s teeth and is easy to clean. PLAY SAFE: Every dog plays differently so it’s always best to keep a close watch on your pup in case things get ruff. Supervised play will help toys last longer and most importantly keep your dog safe. No dog toy is truly indestructible, so always remove the toy from playtime if pieces begin to break off.