Tretorn Micro

The Tretorn Micro X is a microcellular tennis ball. Through a special process this tennis ball is filled with 70 million air-filled microcells. This makes it a distinctly different type of tennis ball than a regular pressureless or gas-filled tennis ball. The Micro X combines the playing characteristics of a gas-filled ball with the lifespan of a pressureless tennis ball. As a result, this tennis ball offers excellent playing characteristics. ITF approved for KNLTB matches and tournaments.