No matter for the rear scene or for your security, it is necessary to install rear observation that allows you to see what is behind you.This rear view mirror monitor can be adjusted to eliminate blind spots with the 360-degree mirror and can be effectively expand your horizons so as to ensure your driving safety.It is made of high quality and durable glass material.Mirror diameter of the product is 5cm and frame diameter is 5.8cm.It is suitable for install on rearview mirrors or side mirrors.Item Name: Blind Spot MirrorMaterial:Glass,ABSShape: RoundProduct Color: Silver ColorSize Details:Mirror Diameter: 50mm/1.97" (Approx.)Frame Diameter: 58mm/2.28" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Installation Guide:Remove dirt and grease with mild detergent from mirror surface to be installed.Peel off protective film from bottom of blind spot mirror.Install firmly on clean and dry mirror surface.Package Includes:1 X Blind Spot Mirror