Gexco Tennis Ball Saver
Tennis ball savers are just great, and there are different sizes out there, but I like to use one that fits 3 balls because it can be stored in a bag so easily.
These pressurized containers work to generate equal internal and external pressure so that air won’t affect the ball whatsoever. Thus, keeping the tennis balls fresh and bouncy.
As affordable as this tennis ball saver is, it will start saving you money in no time because you will be throwing fewer tennis balls away when you use it!