Le Petit Tennis "Slow Bouncer" 36' Yellow-Red Tennis Balls Kids - Pack12 - (Stage 3 Ball - For Playing on 36ft Court) Designed for kids learning to play tennis on a 36-Feet court, short court or driveway These balls are larger and softer than standard yellow tennis balls, with a lower bounc Conform to the USTA quick start tennis format and ITF Stage 3 standards 12 Balls per package Selected by Jean Fleurian (Davis Cup Player)