Roadway Lime Green Safety Vest, RED Flashing LEDs, Extra Large Size Flashing Red LEDs for High Visibility, 7 Days or 168 Hrs w/2-AA Batteries Ideal for night visibility of Cyclists, Traffic Police, Parking Area Guards, Valets Vest can be seen from up to 2,000 feet away Highly Reflective PVC Tape on 100% Nylon Mesh Fabric. Other sizes, colors available Caution: Extreme Care Required due to Flexible Circuitry. No Sharp Bends, No Stretching