Glow In The Dark Shift Knob For Manual Short Throw Gear Shifter Green U1 for Chevrolet Aveo These knobs are NOT painted. The color will NEVER rub off or lose its shine! Perfectly sized at 2 1/8" diameter, the 4oz design feels ROCK-solid in your hand. Features a Glow in the dark design, just charge them up in light and they will glow for hours. Installs in seconds!