Manufactured to EN166-39B. Ratchet headband for comfort and easy adjustability. Close cell foam cushion on the ratchet bridge for anti-slip fit. Sturdy construction. 100% plastic material for dielectric protection. Maximum environment temperature = 100°C. Suitable for: General use and protection against impact (120m/s), Metallurgy (protection against molten metal and hot solids), Chemical industry (protection against splashes of liquid), Construction (grinding, stone chipping, carving, etc). For use with.SV9PC 230mm Clear Polycarbonate Visor. Please note, this bowguard does not come complete with Face Shield - this must be ordered separately.