Material:Made of polymer composites, safe and environmental, durable and highly-anticorrosive. Black Weight: 2.65 Lb Size :Dimensions: 7.6 x 11.4 x 12.8 inch, head circumference 21.2-25.2 inch(54-64cm) The Front Mount Point and side accessory rail connector can carry NVG, video camera, flashligh, communication tools and other tactical equipments. The defogging system with built-in fan can keep you free from fog. Use 3X 7A batteries (Not included) NOTE:Please measure your head size before order To Prevail In Kind. The item "Cosplay Airsoft Tactical Skull With Fan Helmet NVG Rail Mount Full Mask...