Features: The weight trainer warms up before practice or competition, which used to exercise arm strength and swing.
Increase the weight of the racket, correct the motion, and increase the hitting force and stability.
Tennis racquet weight adding device can accelerate the formation of muscle memory during swing, and make your muscles strong.
Make of Zincs Alloys and Coppers Plating, and easy to use, can screwed on the tennis racket both sides.
When you finish your workout and remove the tennis racket swing weight practice training tool, you'll get faster swing speed and stability.

Specifications: Component: Zincs Alloys and Coppers Plating
Color: 01 Color 50g/Green 25g/Black 100g
100g Size: about 39x15mm/1.54x0.59inch
50g Size: about 30x15mm/1.18x0.59inch
25g Size: about 25x15mm/0.98x0.59inch

Package Includes: 1pc Tennis Racket Weight

note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.