The Wilson US Open Red Dot ball is the first stage in the ANZ Junior Hot Shot program and is specifically used for juniors from 2-8 years old. The Red Starter Ball features a lower compression for significantly slower, more playable bounce characteristics. This ball bounces 75% lower than regular tennis balls, which gives players a greater opportunity to hone their strokes and focus on form as they continue to evolve their game. This is a ball that suits a 36′ court, driveways and playgrounds. It is often used with a 19 inch or 23 inch. Each can has 3 red dot balls.