Mishimoto Weighted Shift Knob XL Red (Knurled) - MMSK-XLK-RDHXL Weighted Shift Knob designed for smooth and seamless gear changes Steel construction for added weight and easier shifts 2lb 32 oz 907 gram total weight for precise and accurate shift feel Available in multiple color options to suit your tastes Black, Blue, Red, and Silver color options Easy to install in under 5 minutes 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