Tourna Restore Tennis Ball Pressurizer • Unleashed Box

Extends the life of your tennis ball by storing them under pressure
Screw the halves together to create a pressurized environment equal to 14 psi, which is equal to an unopened can of balls
The balls stay at the same pressure as when you put them in there
Tennis balls left out, will lose pressure over time. Don't waste your tennis balls. Keep them pressurized!
Just twist the pieces together to create the pressure. Untwist when ready to use. Simple..Save Money! Save your Tennis Balls!