Gamma Box-O-Balls 18 - Box

pressureless balls. they work. a bit slower. less bounce. less spring. but they last. and look good. i think this brand isn't as bouncy as some others ive tried.

Excellent quality and durability. For beginner or junior players they are perfect.

Good tool for teaching!

These are long lasting tennis practice balls...especially if you own a ball machine. Note: there will be some duds in the box.

Has to be the worse practice ball I have ever purchased or used. Bugged me that you could see the seam where the balls were assembled. The felt looked as if I had hit the balls for an entire summer. Terrible bounce, hitting the ball was like hitting a dirt clod. Even the sound coming out of my ball machine was the first hint these are terrible Sluggish balls. Used the balls for one three hour session. At this point i could care less if i dont even get a refund. My dog probably wont chase after this ball.!! You totally get what you pay for. Save yourself some grief and purchase my favorite pracise ball, X. Need I say more.

Almost immediately upon receiving balls, about 10% seemed to bounce very little. Now that we have had balls for less than 3 months with limited usage several balls split open and are useless. I bought to use with Lobster Sports ball machine and they mostly work well with machine. Balls have been through machine probably a hundred times each at most and been served maybe 10 times in addition. Now there are maybe 15% of balls have issues (cracks/splits, weak bounce) even though the few regular balls that have gotten into our machine seem just fine still. The ones that are good work well with the machine, though.

These balls are perfect for my practice sessions. They bounce really well and don’t get flat like regular tennis balls. I’ve been using them to hit against the wall and for drills. Great quality and super reliable!

I purchased two boxes of these balls in the spring. They were stored indoors and we live at normal altitude. The balls were used for about 3 hours of play per week, always on hard courts. "Bounce" -- I would say 25% of the balls were not "non-pressurized" properly, which was not a good start considering quality control should have caught some of those first. The balls that were properly stiff bounced sufficiently for the first 2 months, but they began to decline at that point and were bouncing similar to a green ball by month 3. By month 5 I would categorize their bounce as an orange ball, and we have replaced them at this point. "Felt" -- High quality felt. Even while engaging in heavy spin shots, the felt didn't tear, and did not "over-fluff". The balls still have excellent felt after 5 months of use, even though they are now discolored. "Feel" -- The balls have a heavy feel you should come to expect from pressureless tennis balls. They are not as bad as a ball dedicated for a ball machine, but they definitely feel heavy on contact than a pressurized ball. Again, the felt helps this ball have a better feel than some other practice balls Recommendation: As a training aid for a yellow ball player, I do not recommend purchase, even at this price point. However, if you have a junior who is currently training in green ball, and you want to start preparing them for a move into yellow ball, these could be an excellent stepping stone between green and yellow. Although this is a very niche usage scenario, and the quality control is definitely something to be wary of, the price point of these balls provides a short term, disposable ball for your junior to grind their way into yellow ball.