The Vollint Mini Green tennis balls are 25% slower than standard balls to give players more time for preparation and enable them to hit harder shots while still controlling the ball. Perfect for juniors aged 10+ and adult beginners, the balls offer a softer feel and lower, predictable bounce to suit the height and motor skills of the player, as well as to allow for developing correct stroke technique. These Stage 1 balls have a quality acrylic felt for added durability and increased visibility on the court. They are suitable for training and match play and come in a practical mesh bag for easy transportation. These yellow balls with a green dot can be used in Mini Green and Stage 1 tennis tournaments. They are supplied in a 1-dozen pack (12 balls).