175G Neo Chrome Shift Knob Manual Short Throw Gear Shifter Selector 10X1.25 K61 for Mazda RX-8 Made from SOLID weapons grade 6061 aluminum. THESE KNOBS ARE NOT PAINTED. They are Neo-Chromed for a brilliant finish. Measures in at 50mm (2") overall diameter. Knob weighs in at 5oz Design feels super smooth and ROCK-solid.