Description: The signal light fits easily and safely on almost any helmet without the use of tools, and you can also mount it on the handlebars of a bicycle. There are three light colors of red, green and blue for you to choose from. Producing an intense beam of light and a wider illumination for a greater area, our mini LED torch is a good choice. With waterproof and drop-proof design, it can be used as a tactical hand-held flashlight for cycling, hiking, camping, and other outdoor activities. It is constructed of silicone material. The length of this product is 11cm, the width is 3cm and the height is 1.3cm. It works perfectly as a tactical helmet light but also doubles as a great piece of equipment for camping, hunting, biking, fishing, and more! No matter what type of adventure you're on, it keeps you safe and on the right road. Item Name: Helmet Light Material: Silicone Features: Portable, Waterproof, High Brightness Battery: 1 x Button Battery (Included) Size Details: L: 11cm/4.33", W: 3cm/1.18", H: 1.3cm/0.51"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Helmet Light