Golf Center of Gravity Precise Automatic Marker. Missing the hole on a short putt can happen to any golfer. This may be related to the center of gravity deviation in the golf ball. If the ball's center of gravity is off, even a correct putting stroke may not result in a straight roll into the hole. This automatic golf ball center of gravity marker spins the ball at high speed to accurately identify the center of gravity distribution line and axis point. Using this information helps improve putting alignment and stability. It can also enhance the accuracy of wood shots by identifying the balls center of gravity, helping stabilize ball flight, reduce backspin, and promote straighter, more consistent shots. A helpful tool for improving performance on the course. Color: Black & Red. Material: Plastic. Package Contents: 1 x Golf Electric Scriber. Product does not include other items shown in images. Note: Light reflection and display differences may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3 cm.