Joker MacHine View Tech IX Conical Teardrop Mirror Right Black Anodized Univ Stems and heads are completely CNC-machined from billet aluminum (not cast), with a design that is lightweight, strong and fully adjustable in every direction All styles provide exceptional rear visibility due to the use of exclusive custom-made convex mirror glass Once the mirror is positioned, a simple twist of a wrench keeps them at the desired tension setting, unlike nonadjustable designs that fail with time Swivel post assembly is completely serviceable and is machined from stainless steel alloy to ensure corrosion-free operation View Tech IX mirrors feature 1960s vintage-road racer styling