US OPEN TENNIS

Tretorn Micro X Tennis Ball Bucket of 60 - Solid Yellow Tretorn’s micro cell tennis ball, the Tretorn Micro X, is neither pressurized nor pressureless. By utilizing over 700 million balloon-like microcells that don’t lose pressure, the Micro X ball combines the best of both worlds, resulting in a tour performance ball that does not lose bounce or performance over time. Because Tretorn Micro X balls do not rely on gas pressure to maintain their bounce, the aspect of the balls ‘going flat’ is completely removed. The patented leak-proof design means Tretorn Micro X tennis balls remain playable for extremely long periods of time, store well, and don’t require chargers or other leak reduction accessories. As a result, Tretorn Micro X balls are a favorite among tennis coaches, schools, tennis clubs, and recreational players. Each plastic bucket contains 60 Tretorn Micro X balls.
Customer Review: An excellent, durable tennis ball
Tretorn balls last a long time especially for casual users and for play at high altitudes. I only play occasionally during the winter and at 7,200 feet pressurized balls lose their bounce in a short time. Tretorn balls never go flat.