Classic Glow -Rechargeable LED Bike Light Set, Cycling Headlight and Taillight, 2 USB Cables Included EASY INSTALLATION: Our premium bicycle lights can be installed in seconds without the need for any tools or other equipment. Add a light to your bike, backpack, helmet or other areas for maximum safety. PREMIUM ALUMINUM ALLOY: We've carefully crafted Classic Glow Bicycle Lights using durable aluminum alloy so they can stand up to weather, road use, and even low-impact drops. They're also waterproof! VERSATILE LIGHT MODES: Each of our lights feature three specific modes of use-high, low and strobe-so you can be easily seen in early morning fog, dusk, nighttime, and dawn. USB RECHARGEABLE:- No more investing in expensive and wasteful batteries These ultrabright LED lights offer visibility up to a half mile. This helps other riders, drivers, and walkers spot you when riding in low light or complete darkness. Orders also come with eight extra batteries! SATISFACTION GUARANTEE: If you aren't completely happy with our LED lights, simply return them within 30 days for a full, no questions asked refund.