One pair of CNC Billet Bar End Mirrors for Ducati 821 Monster CNC Bar End mirrors are made from 6061-T6 Aluminum with a beautiful CNC finish. Mirrors are solid under the most extreme vibrations or speed. Light blue tinted mirrors glass reduces glare while giving the mirrors an elegant style Hardware is made from 304 stainless steel for strength and anti-rusting properties. Easily installed in minutes, tools included These mirrors fit any bikes with standard 7/8" hollow handle bar,Please check your handle bar before ordering. These mirrors are sold in pairs, one Right Side and one Left Side mirror.