Reflective LED Armband: This sports bracelet is a stylish accessory ideal for parties and festivals, suitable for various activities such as running, cycling, and skating. It enhances visibility in low-light conditions, improving safety during nighttime use. Light Emitting Time: Up to 12 hours of operation. Features USB charging; approximately 2 hours of use after 30 minutes of charging. High Quality: Made from durable nylon material, offering wear resistance and comfort. Environmentally friendly and designed for long-term use. Adjustable Size: Fits arm or leg circumferences from 11 to 13 inches. Suitable for both adults and children. Can be worn on wrists, ankles, arms, or legs. Ideal athletic accessory for men and women. Widely Used: Also functions as a fashionable accessory for concerts, bars, nightclubs, and other evening events. Specifications: Material: Nylon Dimensions: 2.5 cm x 36.5 cm x 13.5 cm (0.98 in x 14.37 in x 5.31 in) Package Includes: 2 armbands 2 charging cables Note: Slight variations in measurements may occur due to manual measurement and display differences.