Designed for the hard-core enthusiast, this skull shifter knob is sure to draw attention to any interior. Crafted from solid, heavyweight metal, it is beautifully polished and chrome-plated for long-lasting style, and will fit 5/16 to 1/2 inch diameter shifter sticks. Complete with adapters, set-screw, and hex key for a fast, easy installation. Fit all 5/16 to 1/2 inch diameter shifter sticks.