Battle Steel Level IIIA Ballistic Shield w/ Viewport 36 x 20in. Features a curved shape and measures 36in x 20in thickness: 10mm. Ballistic material is polyethylene. Tested To NIJ Level 3A 9mm / 44 Magnum. Specifications for Battle Steel Level IIIA Ballistic Shield w/ Viewport: Manufacturer: Battle Steel Color: Black Fabric/Material: Polyethylene Size: One Size Gender: Unisex Length: 36 in Width: 20 in Weight: 13 lb Additional Features: Curved Package Contents: Battle Steel Level IIIA Ballistic Shield w/ Viewport Battle Steel BATTLESTEEL-605-04: Level IIIA Ballistic Shield w/ Viewport 36 x 20in