Feature:1. LED light can help to improve visibility and safety at night, making running, walking, cycling and other outdoor activities safer at night.2. Light in weight and comfortable to wear, no sports restrictions, even if directly against the skin will not cause tangling.3. Hook and loop design makes it quicker and easier to put on by attaching it to your arm, wrist or calf and press the button.4. Freely switch of three light modes, fast flash, slow flash and constant light, meet your different needs.5. Can be tied on the arm, wrist, leg or any place you like, can be adjusted according to different needs.6. Suitable for outdoor night activities such as jogging, walking, cycling, concerts, camping, outdoor sports, etc.Spec:Item Type: LED Light WristbandMaterial: Nylon Ribbon + Plastic +PU FiberSize:Width: Approx. 2cm/ 0.8inSpreading Length: Approx. 24cm/ 9.4inBattery: 2PCS CR2016 Button Batteries 75mAh( built-in battery shipment)Light Mode: Fast Flash, Slow Flash, Constant Light( controlled by switch)Package List:1 x LED Light Wristband