Peel off protective film from both sides of visor before using. This product is designed for face and ear protection of light debris during operation of lawn and garden equipment. It is not designed for medical or any health care related activity. The visor of the face shield measures 8 inches high X 8 inches wide when assembled in the headgear. The visor is 15 inches wide when flat but as it is mounted curved in the headgear it measures 8 inches wide x 8 inches high when assembled. Please notice our face shield has ear muffs that can be removed, but the headgear gets less confortable when ear muffs are removed. Return of the product costs around $ 10 per piece, so please make sure you really want the item before purchasing.