Standard Fresnel Lens

Product:Wide-angle Rear Window Lens(8"*10") Size:8"*10" Thickness:2mm Material:Soft PVC Groove pitch:0.5mm Focal length/Magnification:-330mm Feature of wide angle rear window fresnel lens * Easily applied and removed by using water only. * Easy installation on rear window of your vehicle. * No tools required. * Need no adhesive, just use water only * The lens is better working for vertical rear windows How to install? * Apply the quality lens to the inside of the rear window near the botton edge. * Make sure window is clean, then wet it with water * Apply smooth side of lens on the inside of window * Remove air bubbles from the lens * Hold firmly in place for a few seconds. * The lens will turn crystal clear until be peeled off.