The Medicus CoilMaster is a simple, yet very effective training aid in teaching the proper coil/pivot of your body that occurs during the golf swing. Moving off the ball, during the backswing, is a very common fault among high-handicapped golfers. The Medicus CoilMaster automatically prevents you from moving incorrectly by keeping your body centered. The correct coil/pivot on the takeaway and backswing is the foundation of creating power, accuracy, and consistency.