Consistent accuracy lies in well-trained muscle memory. The Medicus(R) CoreLinks(TM) 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(TM) 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(TM) pad will fall and conveniently retract back to your belt clip. Medicus(R) CoreLinks(TM) is an revolutionary training aid in helping you maintain the proper swing-path.