This is a original Ulmer 82 Aircrew Quick Donning Oxygen Mask Assembly Date 1987 ,it appears to be complete with hose and intercom, the mike is in the mask, It has adjustable straps for a one size fits all. It is in very good to excellent condition and was probably used for heavy aircraft like the C-130 or KC-135 etc. ,Please note that all our items are pure collector items or display items. The items are not tested for real use and have no aeronautical exams or clearances. Use is at your own risk !