Size: 2”x3.15”（5x8 cm） Ultra High Quality, Military Grade long-lasting with Hook and Loop Nylon Fabric Laser Cut, Reinforced on the Edges, Nice Sewing IR material, ONLY reflects infrared light, can be seen through NVG, NON-REFLECTIVE TO VISIBLE LIGHT Great for military tactical helmets, military tactical vests, military tactical backpacks, uniforms, caps, jackets, work shirts and body armors.