We offer ear protection. Features:- made out of impact proof pp for rugged use. fully dielectric and safe from electrical hazards. polurethene liquid filled ear cushion for comfort and ensures maximum attenauation. very light and attractive and it is durable. adjustable cushion, padded, head band, rotating 360 deg. With chrome plated springs. available with abs plastic head band which gives strength to muff. conforms to is 6229 and dtp.