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).