The disclosure relates to a portable golf swing practice device. The practice device includes a weighted base and an upstanding flute guide post with a positioning bar adjustably mounted between ear portions of a post encircling locking jaw which is vertically and rotatably adjustable on the guide post. By setting the positioning bar in any one of a plurality of positions relative to the user, each of the proper body positions and swing motions can be reinforced thus improving the user's stance and wring during actual playing. All components of the device are made of a rigid high strength polyvinglchloride to prevent corrosion.