The Mishimoto Shift Knob provides a superior alternative to your factory shift knob. The weighted shift knob allows for smoother, faster shifting while the signature "M" logo and polished black or silver finish adds some Mishimoto flair to your interior. Shift knob designed for smooth and seamless gear changes; Steel construction for added weight and easier shifts 12.8 oz360 gram total weight for precise and accurate shift feel; Ergonomic shape allows for smooth shifting and comfortable hand position Purchase includes three insert sizes to fit various applications Insert thread pitch sizes M8 x 1.25, M10 x 1.5, M12 x 1.25 Mishimoto Lifetime Warranty