Quality: Tennis Ball Is Production Of Balanced Pressurized Core Covered With High Quality Polyester Fiber & Rubber. This Balls are durable for long period use. Multi-Purpose: Suitable For Multiple Activities Such As Dog Toy, Tennis, Cricket, Kids’ Games, Perfect Balls & Can Be Used For Outdoor/Indoor Exercise As Well. Quality Material: Tennis Balls Are Made With Thick And High-Quality Rubber Which Is Safe For Kids. Our Balls Are Free From All Kind Of Toxic Material And Gasses. High Bounce: Tennis Balls Pack Are Produced With Good Quality Rubber That Provides Consistent Performance, Makes It The Best Choice For Players. 24PCS: The set contains 24 tennis balls, which should suffice for your training needs.