Extra Duty: Ideal performance on hard, abrasive courts
Regular Duty: Ideal performance on soft, clay/indoor surfaces
High Altitude: Ideal performance on surfaces above 3, 000 ft.
Can includes 4 balls
Tennis balls for all hard surfaces, one size, USTA- and ITF-certified - Optimum durability and performance, ideal for all courts - Durable, hard core, made of Dura-Weave felt for longer durability - With resealable can for tidier storing and longer durability.
