The main part of the grip is made of POM (resin) that is not affected by temperature changes, and has been designed for comfort. In addition to its easy-to-grip shape that has been calculated from many years of experience, it creates a beautiful curve shape that is supervised by industrial designers. In addition, the aluminum part has a red anodized finish for a sporty look. Product Weight: Approx. 4.2 oz (108 g) (Genuine Weight: Approx. 7.7 oz (197 g); Knob Diameter: 1.7 inches (44.5 mm); Genuine Diameter: Approx. 1.9 inches (48 mm).