Karcepts Shift Knobs are meant for use with Honda/Acura vehicles and any other vehicle's shift lever that accepts an M10x1.5 thread pitch. These knobs were designed to sit a little taller than OEM placement for ease of reach when banging through the gears. Our custom profile is offered in 3 different material choices for the pickiest of drivers. For those who desire a heavy knob, our Polished Stainless Steel Shift Knob is the king of all heavyweights, weighing in at a whopping 605g/1.34 lbs. If you desire a knob with a tad more beef in comparison to an OEM knob, our Black Anodized Aluminum Knob will do the trick as it scales in at 205g/0.45 lbs. For those who want to feel their tranny syncros at work, go with the lightest of the bunch with a Black Delrin Knob at 105g/0.23 lbs.