Material: Webbing + LED Size: 32*2.5cm / 12.61"*0.99" Color: As shown 1. USB rechargeable design with a built-in high-efficiency lithium battery for long-lasting battery life, eliminating the need for frequent battery replacements. It's environmentally friendly and economical, giving you peace of mind during night runs. 2. High-brightness LEDs with multiple flashing modes (steady on/fast flash/slow flash) significantly enhance nighttime visibility, effectively ensuring safety for outdoor activities like night runs and cycling. 3. Lightweight, conformable silicone material is soft and comfortable. The elastic armband/footband design adapts to various arm and leg circumferences, ensuring a secure fit and preventing them from falling off, allowing for unrestricted exercise. 4. Versatile use scenarios, suitable for nighttime activities such as running, cycling, hiking, patrols, and rescue operations. It features both reflective strips and act light for dual warning effects. 5. Waterproof and sweat-proof construction ensures all-weather use, ensuring stable operation even in rainy weather or under intense sweating conditions, making it a safe companion for nighttime travel. Package includes:1pcs Armband