Black/White Rally Stripe Shift Knob For Manual Short Throw Shifter 12X1.25 K15 for Ford Mustang These knobs are NOT painted. The color will NEVER rub off or lose its shine! NO SET SCREWS! All-metal threads so your shift knob WON'T wobble or fall off. Perfectly sized at 2 1/8" diameter, the 4oz design feels ROCK-solid in your hand. Installs in seconds!