Perfect for little tennis enthusiasts to learn with, the Vollint Mini Red Felt are Stage 3 tennis balls with a low compression core. These 75mm (3”) starter junior tennis balls are 75% slower than the standard to give more time for preparation and help youngsters hit the ball with ease. With a durable two-tone acrylic felt, the balls offer great playability and allow for keeping track of spin development. For more confidence on the court and accelerated learning, the balls are larger and softer than regular tennis balls and ensure a lower bounce. They are designed for kids aged 4-8 and come in a handy mesh bag for comfortable storage and transportation. The balls are supplied in a 1-dozen pack.