Item Title

You can accurately draw the center of gravity line of the ball.

I am sure that everyone has experienced a putt that went off spectacularly on a flat green. In fact, the center of gravity of the ball is often off, and even if you roll the ball accurately, it does not always roll straight.

Check Go Pro" rotates the ball at high speed (10,000 revolutions per minute) to find the axis of rotation of the ball and find the optimal ball line. The optimal ball line increases the distance of the driver and improves the accuracy of putting.

Please read the instructions in the instruction manual for inserting the batteries.

The color is red.