Our product are used in bike spokes, giving a strong reflection under the light irradiation by the the flashlight torch or car at night. Play a security role. It an be used for a long time no matter sunshine or rain. You are . Hope you enjoy your riding. Features - Color: Red. - Size: 12.00X4.00X2.50cm/4.72X1.57X0.98in - Material: Plastic. - Batteries: AA batteries (not included). - Easy to use, and securely connected. - Easy installation, installed in seconds before you get . - Insurance, remains in position, even during off-road use. - It makes you visible on the roads at night, perfect solution for your night-time safety when cycling. - Can be used as an emergency flashlight, keep it inside your car, basement, attic, and emergency kit. Use it when you're running, jogging, hiking, camping, walking your dog, cycling, changing a tire, night time family/kids activities, power outage and more. Package list: 1 x bike light