These mirrors feature a unique shaped head that makes on-the-road adjustments super easy, while providing exceptional rear visibility due to the use of the custom-made convex mirror glass. Once the mirror is positioned, a simple twist of a wrench keeps them at your desired tension setting right where you want them, unlike the competitions non-adjustable designs that fail with time. Swivel post assembly is completely serviceable and is machined from stainless-steel alloy to ensure corrosion free operation. The mirror stems and heads are completely CNC machined from billet aluminum, light- weight, strong, and fully adjustable in every direction to fit just about everyone. Dual-tone black and silver anodized finish give these a classic look. Features: Mirror glass is 2 1/4 inch diameter. Includes mounting hardware. With little modification, these units can be mounted through the ends of most existing grips, by drilling or boring the grip end. Left and Right interchangable. C= Curved Stem / D= Straight Stem. Made in the USA. NOTE: Each mirror requires one of our bar end mirror mounts.