Head mini green balls for ages 9-11yrs - sold per dozen

Balls are sold by the dozen 12 balls. Suitable for ages 9-11yrs 
T.I.P. Green allows players to hit a faultless shot
25 % slower than a standard tennis ball
For starter adults and children aged 9 to 10
Full size court
Easy to control yet still fast
The perfect ball for a player's first run on a full court