Golf center of gravity accurate automatic marker, Missing the hole on a short putt must have happened to every golfer. In fact, it is related to the deviation of the golf ball's center of gravity. If the ball's center of gravity deviates, even if the putting motion is correct, it may not be to start a straight line to fill the hole. This golf ball center of gravity accurate automatic marker allows the golf ball to rotate at a high speed of 10,000 revolutions per to accurately find the golf ball's center of gravity distribution line and axis point, and provide putter stability and stability through the center of gravity distribution line and axis point's correctness. In addition, it can also improve the hitting accuracy of the wood, which can accurately capture the ball's center of gravity, stabilize the trajectory, reduce backspin, hit the ball accurately, and stimulate the ball to fly the farthest. It is a rare weapon to win the course. Color: Black & Red Material: PP Package Contents: 1 x Golf Electric Scriber Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.