The Prime Products XLR 2.5 Convex-Head Ratchet Clip-On Mirror has been designed to securely fit more vehicles than ever. The unique arm design allows the mirror to be used on driver and passenger sides without compromise of fit. The precision ratchet allows proper strap adjustment every time. Remove the mirror in seconds by pressing a quick-release button on the ratchet.• Arms adjust from 5" to 13.5"• Convex mirror head rotates 360°• 2.5" arm pivots approximately 3" up or down for additional adjustments• Mirror head measures 5" x 7.75" Precision ratchet allows proper strap adjustment Quick-release button allows easy removal in seconds Mirror head measures 5"" x 7.75"" & rotates 360°