Feature: 1. Made of high quality fiber reinforced plastic material, which is sturdy and durable in use. 2. Light in weight, compact in size, portable and easy to carry, suitable for tennis lovers. 3. Tennis ball pressure retaining repair box, it is a good way to protect your tennis ball. 4. When closing the lid, screw the bottle to a pressure value of 14Psi and leave it for about 24 hours. 5. The pressure of the tennis ball will be the same as the pressure value of the new ball. Specification: Condition: 100% Brand New Item Type: Tennis Ball Container Material: Fiber Reinforced Plastic Applicable Scenarios: Sports, other ball sports Tennis Accessories: Tennis pressure-retaining repair tool Application: Restore tennis shape Product Size: Approx. 8.5 x 20 x 7.3 cm / 3.3 x 7.9 x 2.9 in Weight: Approx. 433g / 15.3oz Package List: 1 x Tennis Ball Box Cover 1 x Tennis Ball Box 2 x Gasket 1 x User Manual Note: 1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.