The Tennis Serve Bullet Stroke device is designed to develop serve technique and comes in two weights: light and heavy. Go to the Sizes Chart to see all device sizes. A wrist is the speed, direction, and power of a serve. An incorrect serve technique can cause muscle strain, joint dislocation, and eventual injury. The proper technique makes a serve simple and successful. A wrist action is the key to a serve technique. The Tennis Serve Bullet device will isolate wrist action from other movements and develop a powerful, fast wrist stroke.
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