HHAAW aluminum hard hat adapter attaches a variety of face shields to your hard hat. The adapters are constructed to fit most full brim hard hat models. With this adapter, the face shield can be raised for closer inspection of the task at hand, or lowered when needed for protection. The adapters have a spring that clinches to the back dome of the hard hat. Hard hat adapters will fit hard hats that do not come with a universal slot on the sides. Faceshield sold separately. Sold by the each.