By molding the front part of the trunk under the glass instead of using the standard model, it is a product that is easier to install, has improved waterproof performance, and has increased panel rigidity. The outer periphery of the glass is also made of carbon, but if you contact us at the time of purchase, we can provide the same shape as the glass. Because the molding is done in one piece, the outer periphery has sharpness and a tight rear view. It has a shape that can be used for the cutting process associated with changing to a rear radiator. Acrylic glass is difficult to process and can crack due to vibration or tightening of bolts, but when molded using our infusion + epoxy, no cracking occurs (it can be treated like dry carbon). The surface is an epoxy layer similar to dry carbon, so we recommend clear coating for protection.