8 super-bright red LED's can be seen at long range! Tilt feature allows you to angle the lights to optimal effect. Built-in magnet allows you to attach the triangle anywhere on your vehicle, or stand up by the side of the road. Features steady signal lights and blinking lights; operates on 3 "AAA" batteries (included & installed w/ protective tab to prevent battery discharge). 5.75" L x 5.25" H