Promotes the proper wrist hinge at the top of the backswing, and a powerful lag position on the downswing.This swing correcting tool is designed to add distance and accuracy by improving your swing plane, swing tempo, club face alignment, and follow through. Attach the clip to the shaft of your golf club on one end and let the built-in rest to fit against your left forearm (for right-handed). Swing repetitively to gain feedback and correct bad habits. Beginners, social golfers, professionals golfers, suitable for both right and left-handed golfers, men, women and junior golfer. Many professional Tour players use it to warm up and control their swing positions.