●Sweet Note: Not professional tennis balls, not for official competition. Made of high-quality polyester fibre and rubber, our tennis balls offer excellent wear resistance, pilling resistance and playability. Long time with high performance. ●Superior bounce: our pressureless tennis balls maintain perfect and balanced bounce with thick rubber shell. You get bounce over time in contrast to normal tennis balls. ●Attractive dog toys: tennis balls with vibrant colours makes it appealing to your pets. Great for playing catch with your pets. ●IDEAL FOR DRILLS AND GAMES A dozen tennis balls are ideal for rebound or machine practice, training with large groups, lessons for a group, etc. ●This package comes with 12 tennis balls, so you always have a replacement to hold. In addition, a free mesh carry bag is convenient for you to carry. Our products come with 100% guarantee. If you have any problems, please contact us.