Goggles With Grey Shades For Heavy Gas Cutting And Plasma Cutting Work Have Supra-Visi On Hc-Af Optidur 4C Plus Permanently Antifog, Antiscratch Lens Can Replaced, Must Be 100% Uv Protection High Impact Resistance As Per Is: 5983: 1980, En -166 En- 169. [ Warranty Period: 30 Months After The Date Of Delivery ] ]