Blue Rally Stripe Shift Knob 6 Speed Short Throw Shifter Selector 9/16X18 K34 for Chevrolet Corvette 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. Made in the USA! Sickspeed is PROUD to be American based, and American owned! Installs in seconds!