2pcs car blind spot mirrors ultra-thin design, light and beautiful, strong functionality integral molding, edge polished treatment, safe not to cut hands installation method: tear off the adhesive sticker of the fan-shaped lens install the adjustable base attach it to the rearview mirror and press to ensure it is firm rearview convex mirror for car reverse. 2pcs car blind spot mirror frameless auxiliary rearview mirror auto motorcycle universal wide angle adjustable small mirrors.