Best Golf Ball Slow Motion Impact Driver

• Measures clubhead swing speed and tempo time to help golfers optimize their swing to increase distance and improve swing consistency
• No need to hit an actual golf ball—use a wiffle ball, Birdie Ball, sponge ball or equivalent to simulate a real ball, but swing at a ball replica to release the club properly.Immediate feedback provides a basis for golfers to determine swing improvements
• Range of speed measurement from 40 MPH to over 200 MPH