Using strategic magnetic “clicks,” golfers get INSTANT FEEDBACK on their point of release and follow-through with every swing. The "Swing Caddy" measures the correct club head speed necessary for desired distance using innovative magnetic technology, patented in four countries (US, Japan, South Korea, and China). With the combination of the patented steel head and the dual-click system, the "Swing Caddy" makes it easy for golfers to develop a consistent rhythm and tempo that will result in a more powerful and accurate swing. Check out a demo video of how it works by using this link: https://www.youtube.com/watch?v=D56fPS5u4qQ