SINEDY Wide Angle Rear Window Fresnel Lens For Car Van SUV Cosy Specialized Brand new and high quality. It provides driver a increased angle of full view. Enable driver to actually see objects under the rear window which can't see through inside & outside rearview mirrors. Avoid accidents due to the children, pets and other low-lying objects in blind spot behind your vehicle while parking. An effective and economical complement to the parking camera & sensor. Especially suitable for MPVs, SUVs, buses, motor homes and campers. Easily installed and removed by using water only. The view angle of the lens will be reduced If your vehicle wears a back door spare tire or other bulky items. The lens is almost ineffective if the angle between the vehicle rear window and the ground is less than 70 degrees, like sedan. The lens is better working for vertical rear windows. Material: soft PVC. Focal length/Magnification: -330mm. Size: 25.2cm x 20.2cm