(Iii) the protective sheet glass plate (Iv) radiation performance conforms to EN175 requirements

(I) cover the body is made of high quality PVC material(Ii) observation lens, filter lenses are PC material(Iii) the protective sheet glass plate(Iv) radiation performance conforms to EN175 requirements

Effective protection of the eye Effectively prevent the impact of gray sand, small gravel, dust and other eye damage caused. 

Material: overall PVC + ABS + elastic bandTransparent PC observed pieceThe 6th color filtersGlass protection filmClamshell dual lensesLens diameter of 50mm