Enhance your nighttime safety with a fluorescent yellow LED-integrated reflector. Improves visibility for safe running. Features selectable lighting modes: constant on, fast flashing, and slow flashing. Purchased on Amazon in November 2024. Used about 3 times for nighttime jogging, but haven't used it since I stopped running at night. - Brand: TERUI Lights - Color: Yellow The brightest and most visible - Material: Nylon (waterproof) Okay for sudden rain - Type: LED-integrated reflector (battery-powered) Coin-type lithium battery CR2032 - Size: Adjustable length (Velcro closure) Width approx. 4cm, Length approx. 37cm, Weight approx. 30g Thank you for viewing.