The LED bracelet is suitable for everyone: the reflective strap is fast and easy to fix with snaps, without buttons or Velcro fastening, so it is suitable for children and adults with different sizes of wrists or ankles. The 360 visibility security LED reflector with newer materials: The outside of the bracelet is made of high-quality glossy plastic, which reflects light. Inside is LED reflective tape, which greatly increases its visibility. 360-degree ultra-high visibility in darkness and night activities. Three lighting modes: The lighting belt has three lighting modes: fast flashing, slow flashing, and continuous lighting. When doing outdoor activities, you can choose any one of them as your favorite mode. Weatherproof and replaceable battery: shiny plastic makes this reflective tape suitable for all weather conditions. Each LED bracelet contains a CR2032 button lithium battery, which lasts about 40 hours. After the CR2032 battery is exhausted, you can easily replace it. Multifunctional LED armband: The LED armband is multifunctional, with excellent material and comfortable hand feeling. It is suitable for many outdoor activities, such as biking, jogging, dog walking, hiking, running, camping. Specification: Material: shiny plastic and nylon fabric. Dimensions: 35 x 4 cm. Color: as shown in the picture. Power supply: 1 x CR2032 lithium button battery (in the buckle). Lighting: LED. Box content: 4 x LED bracelet with CR2032 lithium button battery.