Less glaring front surface coated chrome glass. Low distortion, high precision chrome glass cutting glare by half in comparison with regular aluminum glass. Anti-scattering glass safety protection. Easy and firm installation by clipping, thinner central unit gives a perfect fit on most of existing room mirrors. Covers wider views than a existing room mirror to reduce blind spots for safety drive. Universal for most cars with standard size rear view mirrors (Attachable mirror height 55-80 millimeter).