OBX Tomcat is truly a state of the art advanced space age technology design. Inspired by the most technological jet fighters and space shuttle throttle handle designs. These shift knobs are equipped with an Overdrive button, which is required by most car manufacturers. Suitable for most cars with O/D transmissions such as Toyota, Nissan, Mitsubishi, etc... These shift knobs are one of the best high performance design and quality in the racing sport industry.