1、Crank Arm Alerter: This crank arm alerter helps keep the forearm fully extended, increases the arc of the swing, and it can alert you if you bend down your elbow to swing the golf ball. 2、Swing Angle Fixer: The fixer and the left arm are kept at a right angle of 90 degrees. When hitting the ball, the fixer club and the left arm are still kept in a line. 3、Wrist Fixed Band: This product can effectively prevent wrist injuries caused by excessive force or improper posture during training. When the right knee moves forward prematurely to the target on the initial downswing, leg correction belt provides immediate feedback to rotate your right hip while maintaining the proper distance between the left and right knees. 4、Wisdom Ball: Using this golf smart inflatable ball exerciser, you can correctly master the swing posture, fix and strengthen the arm distance muscle memory, so as to master the correct swing posture and find the correct hitting point. 5、Durable PVC Material: The yellow swing trainer is made of durable PVC plastic, the wrist trainer is made of neoprene, the same material as the wetsuit, soft and elastic, not too heavy, easy to carry, you can carry it anywhere. Item Type: Golf Posture Correction Kit Gross Weight: 88g/3.1oz Material: PVC and neoprene 1 x Swing Angle Fixer 1 x Wrist Holding Tool 1 x Crank Arm Alerter 1 x Foot Fixed Connection Belt 2 x Foot Strap 1 x Pump 1 x Strap 1 x Wisdom Ball