Abstract: A golf swing training apparatus designed to allow a golfer to practice full swing motions while actually hiring a golf ball. The device is light weight and of simple construction. It provides for optimization of practice time by allowing instant feedback as to progress, or the lack thereof, in the golfer's technique. The device monitors the lateral and forward leg and knee motion during the full swing motion. Moreover, the device provides swing plane indicator rods which may be positioned at any useful angle for a full range of golf swings.