Red/Black Rally Stripe Shift Knob For Automatic Throw Gear Shifter 8X1.25 for Kia Optima 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!