Heavy Weighted Practice Putter by Momentus Golf Inc Tour Model 508. Excellent condition, see photos. "Create a smoother and more consistent putting stroke in just minutes a day by using the Momentus Putter! The evenly weighted design swings the putter back and through along a smooth and consistent path eliminating "Putter Flutter"(the unwanted side to side movement of the putter as it swings)...." Questions? Ask!