Description Tretorn Micro X Tennis Balls (3 Pack ) The patented leak-proof design means Tretorn Micro X tennis balls remain playable for extremely long periods of time. Tretorn Micro X Pressureless tennis balls are powered by 700 million micro cells for superior playability and durability. Specially formulated Flex Felt for superior feel and long wear on all court surfaces. Titanium and polybutadiene core for soft touch and enhanced spin.
