Specially design industrial safety helmet with "ratchet". Upper shell made of HDPE and the inner fitting having 4 points tectonic harness made up of LDPE and also inbuilt ear muff slot to easily connect the ear muff on Helmet along with adjustable chin strap for universal adjustment and also highly absorbent sweatband allows good absorption and does not cause skin reaction.PRODUCT SPECIFICATIONSModel No.AK H02ColourYellowGradeIS 2925:1985MOQ : 10pcs