This Hurst 2-inch diameter billet aluminum shift knob keeps it simple with a silver finish and 5-speed pattern engraved. Utilizing a primary M16 x 1.5 thread size, it also includes adapters for 3/8-16 and 3/8-24 thread sizes as well as jam nuts. Similar shift knobs are available in various colors, billet or ABS material, and with engraved 4, 5, or 6-speed shift patterns.