Flight Helmet Original Pilot Helmet. Size: 1 Head Circumference 52CM-58CM.If you want to return the item, please receive project, 4 days to contact me. If you have any questions, please contact me. When I give you feedback before, please give me an explanation and modification of the opportunity. I believe that communication will solve all problems. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "2008pilothelmet" and is located in this country: CN. This item can be shipped worldwide.