Bangerter occlusion foils are translucent, plastic filters that adhere to the back of a spectacle lens with only water. They block light transmission and reduce visual acuity in a graded fashion. Foils may be cut to fit most frame sizes and shapes and adhere to existing lenses with only water.
Foil size is approx. 2.5″ x 2.5″
Recreational Use: Used in shooting sports – Instructional and Competitive Shooting.
Specifications and More Data: