Used Tennis Ball X1

I have very little information about this since I am still new but my first purchase of these tennis balls came in and they seem to still be in average to good condition. Some have more wear than others but for the price that I paid I am very shocked. In a subjective ratio of quality to price I think the quality is greater than the price (of course I only have ten and I need to see what the future brings with: wear & tear, time, quantity, avg. quality, and overall quality). I plan on purchasing more in the future.