Blue 175E Metal Shift Knob For 5 Speed Short Throw Shifter Selector M10x1.25 Made from SOLID weapons grade 6061 aluminum. THESE KNOBS ARE NOT PAINTED. They are Hard Anodized for long lasting color and finish. 50mm (2") Diameter. Design feels super smooth and ROCK-solid. Weighted at 160g (5.7oz) for increased positive shift.