Convex Adhesive back Quality finish Packaged well to protect product Related posts: K Source® – 4-1/2″ x 6″ Convex Blind Spot Mirror with 8″ Extension CIPA® – 4″ x 5.5″ Convex Oblong HotSpot Blind Spot Mirror CIPA® – 4″ x 8″ Convex Oblong HotSpot Blind Spot Mirror CIPA® – Convex HotSpot Adjustable Blind Spot Mirror