These emergency lights are safe and easy to use. And because they're battery-powered, they are also reusable. You can use either a steady beam or flashing pattern to alert other drivers and law enforcement officials. The bright LED lights can be attached to your car with the built-in magnets. Or use the built in brace to stand the unit on the ground, car hood or trunk.Features include:2 battery powered reusable emergency lights8 AA batteries3 Rows of Bright LED lights keep you visibleLights contain magnets that allow for placement directly on your vehicleOperating instructions to keep you safe and protectedNo dangerous chemicalsStores in trunk or glove boxOfficially Licensed Product of the American Red CrossIncludes retail packaging