Features： 1、The outside is covered with highly elastic waterproof silicone, which is cold and heat resistant, stable, durable, and strong in extension and tension. Light weight, easy to carry. 2、Various fixing methods, it can be installed on the handlebars, seat cushion risers, front forks, seat stays, rear helmets, backpacks, wheel hubs, etc. 3、Imported LED is used, bright and energy‑saving, which greatly increases the safety of night riding. Use ordinary AG10 button battery, easy to replace. 4、3 lighting modes: fast flashing, slow flashing, normally on, and off, which can be quickly switched according to your actual needs. 5、Water‑resistant and anti‑drenching design, it can be used normally in rainy days. Suitable for emergency lighting, night outdoor activities, mountaineering lighting, bicycle lighting. Specification： Item Type: Bicycle Light Material: Plastic + Silicone Size: Approx. 4 x 3cm/1.6 x 1.2in Battery: 2 x AG10 button batteries 150mAh (included) Light: Colorful Light 3 Lighting Modes: Fast flashing, slow flashing, normally on Package List： 2 x Bicycle Light