WSID-01 and WSID-02 "Worker Safety" Hard Hat ID is easily fitted to the exterior of each workers hard hat and provides first responders with the wearers vital lifesaving information in the event they are involved in an accident or medical emergency. WSID05 The Universal ID is made from a very strong "polycarbonate" resulting in incredible durability and strength in extremes of temperature (extreme heat or cold) Flat Pack Counter Display BoxContents include:25 x WSID0125 x WSID0210 x WSID05