Consistent accuracy lies in well-trained muscle memory. The Medicus CoreLinks teaches you the feeling of keeping your upper-arms connected to your body. When separation forms between your body and upper-arms, you are more likely to swing "over-the-top" - causing a slice, hook or pull. Simply clip the CoreLinks retraction reel to your belt and maintain upper-arm pressure on the pads. If you fail to keep your upper-arms connected to your body, throughout the swing, the CoreLinks pad will fall and conveniently retract back to your belt clip. Medicus CoreLinks is a revolutionary training aid in helping you maintain the proper swing-path.