This innovative training aid gives a feeling for correct body position relative to the ball during the service action (or even ground strokes). The Serve Doctor is a simple yet professional training aid consisting of an extension pole and velcro system that attaches to any tennis ball. Just hold the ball in position and have the player hit it right off the rope. It's that simple.

• Pole adjustable up to 214cm.
• Velcro end to attach to tennis ball
• Great training aid for beginners