12x1.25mm Threaded 5 Speed ROUND BALL Type R S Shift knob in BLUE Billet Aluminum for Subaru Impreza WRX STI RS Forester Legacy Outback THREADED (NO adapters) JDM Gear Shifter Selector This is a THREADED Shift Knob! It is NOT a cheap knob that comes with adapters that you see all over the Internet. Those can wobble and come off of your shift rod at any unfortunate time. VMS Racing ROUND BALL Style Shift Knob . Brand New. Never Used. Never Installed. Made to Manufacturer Standards for easy Installation. NO drilling or tapping required. Shift Knob is 12x1.25mm and Might Fit Other Brands of Vehicles with same thread and shift pattern. Unique, Locking Nut system. Made from one piece of solid Aircraft-Quality T-6061 Billet Aluminum and Precision-Machined for a firm, reliable feel against your palm that results into positive shifting.