Specifications for Circular Fresnel lenses -wide angle window lens
Size: 190mm x 240mm
Thickness: 1.2mm
Material: Soft PVC
Groove pitch: 0.5mm
Focal Length: -300mm

Wide-angle window lenses show obstacles hiding out of sight. Product is packaged with an open window so the customer can see through it. Easily applied and removed by hand using water only.

A clear wide-angle rear window fresnel lens is a thin flexible negative fresnel lens which adheres instantly with water to the rear window of your vehicle to provides driver a increased angle of full view. The lens enable you to actually see many objects under the rear window you can't not see through inside and outside rear view mirrors.

Use the rear window fresnel lens, you can avoid accidents due to the children, pets and other low-lying objects in blind spot behind your vehicle while backing up. The lens can also be applied on a side window for larger vehicles to aviod squeeze accidents

Feature of wide angle rear window fresnel lens:
* Easily applied and removed by using water only
* No tools required
* Need no adhesive, just water only
* The lens is better working for vertical rear windows
* The lens can be cleaned with water

How to install?
* Apply the quality lens to the inside of the rear window near the button 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
* Press firmly in place for a few seconds.
* The lens will turn crystal clear in 24 hours.
* Lens will stay on until be peeled off about 6 months later, then reuse the lens again