Check-Go Pro - Golf Ball Checker
By spinning the ball at 10,000 revolutions per minute the Check-Go Pro - Golf Ball Checker automatically locates the ball's heaviest areas along its equator (finds the seam or "sweet spot") With the included pen, mark the equator of each ball and you will be playing each ball at its own unique sweet spot.
Check-Go Pro - Golf Ball Checker:
Locates the ball's balanced equator, or the Sweet Spot.
LED light indicates when the ball is balanced and ready to mark.
Marking pen included.