Our dogs are always looking for something in the night. And in the night I'm always looking for my dog. This product is a win win item. It is a row of LED made into a T shape. They are not fiber optics. It can be turn on to flash fast or slow so that on coming cars can see your fury friend. It also can be set to a solid light with no flashing. In addition to that It comes with a Key fob remote control that will allow you to turn on the Pet Flashlight from 60 meters away and at 360 degrees. The Pet Flashlight is the only one of its kind. And we offer 8 different sizes.