* Reflective Helmet Tetrahedron * SET of 2 * 2.0" Bottom Width * 1.0" Top Width * 2.0" Height Designed and printed in-house by 911 Market, this extremely stable cast reflective vinyl features a permanent adhesive and is great for all applications requiring engineering grade reflective properties. Highly visible in daylight and at night, excellent for environmental and safety graphics, including safety and patrol vehicle graphics. Meets ASTM D4956 Type I specifications. Pressure sensitive material will conform to irregular curves and indentations. Water Resistant and Semi-Matte Reflective Finish. Ideal for both indoor or outdoor use. NOTE: The more ink that is used to cover the reflective background, the less reflective the decal MAY become.