About this item DURABLE TENNIS BALLS :This tennis ball is made from natural rubber and durable felt material. Ideal for tennis ball machines, tennis practice, or even playing with your pets REUSABLE TENNIS BALL BAG: The reusable bag will come in very handy when you want to carry your tennis balls to the courts, or for easy storage at home. IDEAL SPORTS GIFT:Our tennis balls can not only be a great tool for a pro tennis teacher,but also great for family fun and use for signature. Even the ideal way to have fun anywhere and even play with your dog or pets. SPECIFICATION:Diameter: 2.5 Inches; Bounce Height: About 135cm. QUALITY SERVICE: If you have any questions about our tennis balls, you can contact us by email and we will solve it for you 100% satisfied