High quality aluminum w/ carbon fiber lip protector from sickspeed. Real carbon fiber wrap in the midsection. Add that custom accent piece with this high quality part Super adjustable with threading on both sides Item is 4" (101.6MM) face to face and and has a diameter of 12mm (.47") Don't forget to check out our other listings for parts and accessories to suit your ride. We are always expanding so keep an eye out for more supreme quality products from Sickspeed. Purchase includes a die-cut vinyl decal: Check out the manufacturer's website for more info and pics.