Gamma Quick Kids 36" Tennis Ball * Ideal for kids ages 8 and under learning to play on a 36 foot court or driveway * Reduced speed and bounce allows kids to hit more consistently * Approved by the USTA for QuickStart Tennis on a 36 foot court * Conforms to ITF Stage 3 specifications * Two-tone felt aids in teaching or learning spin control * 12 oversize tennis balls in a poly bag