Momentus World's #1 Putting Drill Works for both RH and LH Golfers. Method used by the best players in the world. The World's #1 Putting Drill takes the guesswork and hassle out of practicing like the pros. It makes it easy for you to perfect your stroke. Simply align and anchor the World's #1 Putting Drill at the center of the hole on a straight putt, place tees slightly wider than the width of your own putter and start practicing like the pros! Fold The World's #1 Putting Drill in half when finished and place in your golf bag for future use!