The SuperSpeed Golf Speed Sticks Set of 3 Swing Trainers is designed specifically for men golfers looking to increase their swing speed as recommended by Phil Mickelson. These swing trainers come in a set of three with weights ranging from heavy to light, allowing for a customized training experience. The graphite shaft material and 45" length provide the perfect balance and flexibility for improving swing mechanics. Developed by SuperSpeed Golf, these swing trainers are a proven tool for enhancing golf performance and are best for golf enthusiasts looking to improve their game.