1. Golf iron ball heads have different semicolons according to their angles. The semicolons are from No. 1 to No. 9 and Wedge.

2. The ballistic trajectory and distance of each semicolon are different.

3. Generally, people who start playing all start with # 7 and # 5 strokes. Because the bigger the number, the bigger the angle, the shorter the pole length is better. So the longer the club is, the farther the ball is, but it is not easy to play.

4. Wedge is also known as the cutting rod. It's a club used near Green to allow the ball to cut close to the hole.

5. The harder the golf head is, the stronger the golf head is, the less likely it is to be damaged. However, the greater the vibration force, the greater the chance of injury to the arm. As a result, the development of ball head materials is all in the direction of soft strength. The ball head with graphite carbon fiber and stainless steel inside is developed under this goal.

6. The design of golf head Cavity is to distribute the weight around the head to increase the impact of Seet Spot. For the ball head without back pit, the hit sweet zone is more concentrated at the center of gravity of the ball head.

7. The height of the center of gravity of the golf head is the height of the flying trajectory toward the ball, so beginners are suitable to choose the low center of gravity of the high trajectory.

8. Oet-set system also affects the ballistic trajectory. Therefore, the smaller the semicolon, the farther the distance is required, the greater the distance between the rod edges, and the larger the semicolon, the almost zero distance between the rod edges.

9. Bounce is designed to improve easy diggers; on the contrary, Scoop is designed for those who often hit the top. This dihedral is collectively called Sole Angle.