Medicus Powermeter...More Power, More Distance! Medicus PowerMeter Swing Speed Meter features: Allows you to increase your clubhead speed through precise monitoring during training and actual game play See immediate and accurate results consistently with each swing you take Monitor your progress and fine tune your stroke to achieve the perfect amount of power required to help get the ball farther down the fairway Easily transportable and can be removed and just thrown into your golf bag Works on woods and irons Specifically designed to tightly fit on any size shaft A"If you can"t measure it, you can"t fix it!A" -Bob Koch, President of Medicus and former Tour Player Measure Your Progress With The Powermeter!