Specification:
Material: Metal and flexible glue
Color: Black
Inner diameter: approx. 3.5cm / 1.4 inch
Outer diameter: approx. 6cm / 2.4 inch

Description:
Can add the weight of your golf club. (club is not included).
It is ideal to warm up your muscle.
After a period of using, it can improve your muscle strength and swing speed, and then increase distance.
A small training tool with big results, helps you to become a good golf player.