
You screw the top on with three tennis balls in the saver, and it brings the internal pressure to around 14 PSI, the same as in a new can of tennis balls, saving them from certain death, or non-bouncyness.

You can see there that the internal pressure can be brought up to 14 PSI. I can see potential in this thing as a homemade. Just slap a valve and a barrel to the front and there you have it, a weapon with a huge air tank that took a couple seconds to fill. Unfortunetly, the only one of these I have belongs to my mom and sister who play tennis. Stupid tennis. Does anybody know where one could find one of these? I can see some cool things coming out of these if found.









