1、How To Use: When closing the lid, screw the bottle body to the pressure value of 14Psi and leave it for about 24 hours. The pressure of the tennis ball will be restored to the pressure value of the new ball. 2、Tennis Storage: A tennis ball storage box that holds the ball under equal internal and external pressure to prevent air from infiltrating and leaking out of the pores. 3、Small And Simple Design: Lightweight and portable, the size and weight are equivalent to ordinary tennis storage containers, small and simple, easy to carry. 4、Durable And Long Lasting: Selected high quality fiber reinforced plastic materials, durable to use, wear resistant, safe and non toxic, and have a long service life. 5、Sports Accessories: This tennis repairing box is suitable for tennis lovers, and it is also a perfect tennis gift for yourself or someone special to protect your tennis perfectly. ----------------------- Item Type: Tennis Ball Saver Material: Fiber Reinforced Plastic Weight: Approx. 399g / 14.1oz Applicable Scenarios: Sports Trends, Ball Sports Product Use: Restore the shape of a tennis ball Product Size: Approx. 21.6x8.2x7.2cm / 8.5x3.2x2.8in ----------------------- 1 x Tennis Ball Box1 x Gasket1 x Manual