Tretorn Micro X Pressureless Tennis Balls:

• High performance, long lasting tennis balls:
• Suitable for all level of players 
• Offering superior playability and no power loss over time
• Featuring a worldwide patented secret, using 700 million micro cells in the construction of the inner core of the ball resulting in a ball that does not lose bounce and performance over time
• The core is constructed from titanium and polybutadiene for a soft touch and enhanced spin 
• Flex-felt outer surface offers a great feel and maximum durability, making them suitable for all court surfaces

Quantity: 1 Tube (4 Balls), 2 Tubes (8 Balls), 3 Tubes (12 Balls)