Safety glasses set that comprises 4 pairs of polycarbonate frames ( light weight but strong ) in 2mm thick polycarbonate for full impact resistance.
This provides a lens that offers superior standards of safety, easily passing the USA military specifications (MIL-Std-105) and EEC safety standards (89/686/EEC)
The filter colours have been chosen to enhance contrast under varying light conditions. Smoke - for bright conditions. Red - for high definition recognition, Purple- for poor light conditions. Brown - for average conditions.
The mounting system is easy and quick, rotate from the inner end of the arm, then pull at 45degrees from the frame, to replace hold the arm ar 45 degrees to the lens, push the lens into the slot and rotate to connect.
The set is completed with a semi rigid case and a pair of spare side arms.