If your shorts and skirt don't have pockets for tennis or pique balls when you play, the tennis pocket can hold up to 8 tennis or pique balls. The tennis belt bag is made of Oxford fabric, which is sweat-proof, so you don't have to worry about sweat getting your bag and belongings wet. In addition, it is light in weight, so it will not burden you while exercising, thus affecting your Comes with an adjustable elastic buckle waistband that can easily go from 21 inches to 51 inches for most men, women or teens. A must-have item for tennis, golf and baseball players. Also has a main zippered pocket for your cell phone, keys or charger. Perfect for storing your ID, referee items or cash. The tennis fanny pack has a wide range of applications, not just a tennis bag, it can also be used as a golf accessory bag, a ping pong training bag, a baseball bag, and a sports fanny pack for running, traveling or some other outdoor activities Packaging: You will get a Fanny pack (without any balls).