This item can only ship within the contiguous US. Shipping charge of 7.95 per item.
Item is returnable, but does not qualify for free returns.
Featuring patented technology, the Tretorn Micro-X Pressureless Bag of 72 tennis balls offer high performance and improved playability. These pressureless tennis balls are powered by 700 million air-filled micro cells that maintain bounce over time. The exclusive high visibility flex-felt offers strong core dynamics and durability. Due to its construction, the Tretorn Micro X pressureless ball is well suited for play in colder climates, at high altitudes, and all court surfaces--even lower bouncing surfaces. Recognized worldwide as the superior pressureless tennis ball, the Tretorn Micro-X is perfect for practice and tennis ball machines!
I first tried Tretorn Micro X in the mid-90's. Outdoor tennis season in Iowa is about 7 months long. I can add a month on each end using these balls when pressured won't bounce. Plus, they last forever. I still have those originals in my practice hopper. Easily the least expensive choice for lesson gear, and performance is true enough for all but the most skeptical of players.
They last forever and feel pretty close to regular pressured balls, in my opinion.
I use these balls for my machine and they hold up better than others I have tried. This is my second order of these balls from Hollabird (wanted to fill the machine hopper) and they had the best price and availability. Other places I checked were more expensive and had them on back order.
These are just rock solid balls for your tennis machine. They did bounce less than my old/bald Gamma's but that's kind of expected. I love the white/yellow set as they won't get mixed up with neighboring players at the courts and they are very bright.
From someone who has destroyed many old fashioned tennis balls