Neo Chrome Metal Shift Knob For 6 Speed Short Throw Shifter Selector 10X1.25 for Mazda Miata Made from SOLID weapons grade 6061 aluminum. THESE KNOBS ARE NOT PAINTED. They are Neo-Chromed for a brilliant finish. Knob weighs in at 5oz 40mm (1 9/16") Diameter Design feels super smooth and ROCK-solid.