400 Micron Clear Polypropylene visor for Hard Hats. Suitable to use with prescription or safety specs. Protect yourself and others. Elasticated Band to fit all Hard Hats. Resistant to alcohol disinfectants and washable. Lightweight and easy to use. RoHS-2 and ISO certified materials. NOT to be used as an impact protection visor from flying debris such as stones. Only for use to offer the user protection from splashes and droplets to the eyes, nose and mouth only.