Bipack tennis balls (Official Wilson of the US Open.
Tex/Tech technology that improves durability.
- Hard surface tennis balls, one size, official ball of the U.S. open, ITF and USTA approved
- Excellent durability and performance, ideal balls for those who love full court plays
- Hard core, made of high quality wool, thick felt, durable extra duty felt lining
- Moisture-resistant balls
- Contents: 1 x 2 packs of tennis balls Wilson, US open, Includes eight balls, yellow, WRT11752P