Joker Machine Mirror 03013L 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 View Tech VI low brow mirrors are a sleek design statement for those who want optimal mirror size, without sacrificing looks 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