This is a flashing reflector light. It is perfect for walking, camping, and running when night. 3 Different Flash Patterns -slow, fast or stobe light-easy to see at night. 2 Bright, long-lasting LED lights inside each flasher-variety of colors (random choice). Batteries are included and will last for many hours of continuous use. Light-weight, and easy to carry with you anywhere-clip it to your backpack or even your belt loop.