A golf putter having a putter head that rotates when struck off-center by a golf ball includes a shaft that is centered on the putter head. The shaft and the putter head both include indicating lines that line-up and, upon the putter head being struck, will move out of alignment, with the amount of rotation visually showing the golfer where on the putter head the ball struck. The indicating lines are easily lined up again for the next putt.