The item only includes Helmet, oxygen mask Ym9915. The helmet size is 2# (02). Head width 15.316.5 cm. Oxygen mask size:2#(larger, used). The item was from air force warehouse.(some countries in South America need more time). Please request revised invoice when you are finished shopping. I will send you a combined invoice. The item "China air force fighter pilot flight helmet, oxygen mask" is in sale since Saturday, August 29, 2020. This item is in the category "Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Hats & Helmets". The seller is "felicia567" and is located in China,shanghai. This item can be shipped worldwide.