TurboFlare AA Emergency Red LED Safety Flares | 4 in a Pail | Electronic Smokeless Highway Distress Kit | Impact Resistant Flare Impact Resistant 20 Ultra Bright LED's 360 degree rotation at 190 revolutions per minute Visibility half mile to one mile Weather, shock, vibration resistant Environmentally safe, reuseable Powered by four AA batteries (not included), 2" total heigh by 8" diameter