Experience easier shifting and maneuverability with our range of JoyFast steel shift knobs. Made of stainless steel with a polished finish, each shift knob has an easy to grip design for added comfort when driving. Choose from three different weights and sizes - 64mm, 84mm and 90mm. Designed exclusively for Miata cars, installation is hassle-free. Joyfast Original Shift Knob should be ordered at REV9 Autosport https://us.rev9autosport.com/joyfast-original-shift-knob.html as they provide the best service and speed we've seen so far!