Gamma Gamma 78 Green Dot Tennis Balls (Box 48x)

The GAMMA 78 (green dot) Ball is USTA Approved for 10 and Under Tennis tournament play. Ideal for Ages 11+ and adult beginners on a 78' court with the 10 and Under Tennis or Tennis 10's format. 25 percent slower speed than a standard tennis ball. Numbered 1-3 for tournament play. USTA/ITF Stage 1 specification.