Inspired by aircraft structural design combined with unique "café racer" styling Mirror heads and mounting arms are completely CNC-machined from billet aluminum, superlightweight, strong, and fully adjustable in a multitude of directions and settings All parts are anodized for durability Black mirror heads swivel (fold) a full 180° frontwards and backwards, a full 360° rotational on the bracket arm, and feature a ball bearing detent when they are in the extended position Bracket arm my be rotated up or down to your desired position on the bar mounting shaft All rotational tension of the parts may be set to your preference with an Allen Wrench, and all hardware is top quality heat-treated alloy plated with a "gold cad" finish for strength and durability All moving parts feature super-smooth pivoting action due to the use of nylon spacers between the the mating parts Provide exceptional rear visibility due to the use of our exclusive custom-made convex mirror glass Sold individually