Size: 200mm x 250mm (8"x10")
Thickness: 1mm
Material: soft PVC
Groove pitch: 0.5mm
Focal Length: -300mm
View Angle: upward:13º side:25º down:27º
Application: The lens enable driver 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.
Apply to the window of your house. It is easy to keep your eye on kids, yard, pool or pets. Also can help to warn you against unwanted visitors.

Quantity  Unit Price
  250~      $3.98
  100~      $4.58
   50~      $5.26
   25~      $6.04
   10~      $6.80