Chainsaw Protective Safety Helmet System - Hard Hat / Ear Muffs / Face ShieldMeets ANSI: Z89. 1-09 CSA Z94.1-05 Type1 Class C, E, G. 21db Noise reductionLightweight Low profile fit. Made from high density polyethylene. Offers impact and penetration resistance, dielectric up to 20.000 voltsRatcheting Head band and Flip up face shield Pyramex Hard Hat Model HP16140Please Note the assembly Instruction are on the plastic bag that the helmet comes in