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.

Penn ATP Regular Duty Tennis Balls Can

Official ball of the ATP Tennis Masters Series

Preferred on clay and indoor surfaces. (Replaces Penn Tennis Masters Series ball.)

As the Official Ball of the ATP, this Penn ball is played by top tennis players in premier events around the world. It features tournament-grade felt and technical grade rubber core for precise bounce. This USTA and ITF approved ball is available in regular-duty and extra-duty felt as well as extra-duty felt for high altitudes.

3 balls per can.

Penn ATP Extra Duty Tennis Balls Can

Official ball of the ATP Tennis Masters Series

Preferred on Hard Court surfaces. (Replaces Penn Tennis Masters Series ball.)

3 balls per can.

As the Official Ball of the ATP, this Penn ball is played by top tennis players in premier events around the world. It features tournament-grade felt and technical grade rubber core for precise bounce. This USTA and ITF approved ball is available in regular-duty and extra-duty felt as well as extra-duty felt for high altitudes