This lamp is made of high quality material, characterized by lightweight and small size. Tied to arms or legs, it can make your nightly running or cycling safer. Features: Made of high quality silica gel material, this lamp is strong and durable. Premium LED light source, high brightness and low energy consumption. It can be tied to arms or legs, making your nightly running or cycling safer. Lightweight and small size, easy to carry and use. Suitable for using in outdoor nightly running, cycling, jogging, etc. Specification:Condition: 100% Brand NewItem Type: LampMaterial: Silica GelLight Source: LEDMode: Constant, FlashBattery: 2 * 2032 Button Battery (Included)Optional Style: Blue Shell Blue Light, White Shell White Light, Red Shell Red LightSize: Approx. 18.5cm / 7.3inchWeight: Approx. 60g / 2.1ozPackage List:1 * Lamp