"Light Stick - 30 Minute, High Intensity, Yellow. Portable, single-use light sticks. Easily activated - bend, snap and shake - no batteries, bulbs, matches or power source required. Weatherproof - can be used in rain, snow, wind and underwater. Non-flammable - can be used in areas where ordinary sources of light could pose a hazard. Ideal for home, travel and cottage emergencies, industrial safety, emergency vehicular needs, natural disasters, police and security use, firefighters, marine and boating. Non-toxic. Length: 15.2 cm (6"). Sold as Each"