Nema Golf Swing Straight Practice Elbow Brace Elbow Support  (Black)

When beginners swing the bar, they often form left arm bent in swing process,thus difficult to hit the ball or the result is not satisfactory. The correct position on the left arm should keep straight not bend when swing.This golf elbow brace arc corrector have alert alarm device. When the golfer swings, it will issue a prompt voice if the left arm bend. Then the player can immediately know the error and make timely corrected, thereby to maintain a stable posture. Features: -Help correct posture for swinging with ease -Adjustable circumference, fits most people's arm -For quite good control on distance and direction -Fit all golfers/golf instruction, especially for beginners/golf teaching supplies Specification Material high-end composite material Color black Length approx 17.5cm/6.8 inch Width approx 11.5cm/4.5 inch