Not only does our new billet, heavyweight shift knob look great inside your car, but it also adds a bit of function and performance as well. With its solid construction and added heft, shifting becomes smoother and faster. Installation is simple utilizing the included 3 large diameter set screws allowing you to position the shift knob at the ideal location for your needs. Our precision shank is designed to specifically fit the diameter of the BMW shifter lever so that there is no slop. This ensures a better and more secure fit so that your shift knob will not come loose unexpectedly as is prone to happening with more universal shift knobs. Weighing in at approximately 250 grams the added inertial mass makes shifting effort substantially less while speeding up the process at the same time.