Perfect your stroke and timing with the Dunlop Stage 1 Green Low-Compression Transition Tennis Balls. Engineered for developing players aged 9 to 10, as well as adult beginners, these green-dot transition balls are designed to fly 25% slower than standard tennis balls. The reduced speed and a lower, highly predictable bounce height give players extra time to set up their shots, adjust their footwork, and master proper swing techniques on a full-size court. Approved by the International Tennis Federation (ITF) for their “Play + Stay” developmental program, these balls feature an ultra-durable woven felt outer layer and a soft core that provides excellent feel and control. Packed in a convenient 3-ball tube, they are an essential learning tool for tennis coaches, youth clubs, and casual training sessions.