Aluminum housing Self adhesive back sticks to side view mirrors Only the best build quality Designed specifically to help you Providing a superior level of service and quality Related posts: CIPA® – 1.5″ x 2″ Convex Wedge HotSpot Blind Spot Mirror CIPA® – 4″ x 5.5″ Convex Oblong HotSpot Blind Spot Mirror CIPA® – 4″ x 8″ Convex Oblong HotSpot Blind Spot Mirror Performance Tool® – Stick-On Spot Mirrors