Our this gear shift knob is divided into two injections，the inside of the club and the outside of the ball are separately injection molded. The requirements for materials in these two parts are different. The requirements of the material inside the club are relatively tough and flexible, so that it is easy to install and not easy to break. The outer ball material needs a better quality material with good adhesion to the skin. Many suppliers in the market are disposable injection molding for cost saving, which results in poor adhesion of the outer ball head and easy peeling of the outer skin. Our this gear shift knob is injection molded twice, the quality is better, and it is wearable and has a longer service life.