JR Products 3100 Aero Blind Spot Mirror Mirrors & Wipers Aero Blind Spot Mirror 3100 JR Products Wind tested up to 240 mph for vibration and security Unique clamping system allows you to clamp onto a straight or curved mirror. Clamps are constructed of high impact plastic with stinless steel to ensure a lifetime of use Mirror glass is 5 inch height by 6 inch width