GikPal LED Bike Tail Light, USB Rechargeable Bicycle Tail Rear Light Fits on Bikes Helmets Backpacks, Set of 2 HIGHEST QUALITY MATERIAL - Aircraft grade aluminum alloy provides a shock resistant shell that is virtually unbreakable. Its industrial-strength construction is water and weather proof and its finishing is scratch-resistant and anti-abrasive allowing you to ride worry-free in the toughest environments. EASY SECURE MOUNTING & ONE SIZE FITS ALL - Tool-free handlebar or seat riser mount ensures an easy and fast installment. The flexible silicone strap stretches enough to hug anything you would like to attach the safety light to your bike, helmet, pack, belt YOUR SAFETY COMES FIRST - You have to assure flawless visibility and illumination as you ride. With the ultra-bright waterproof LED tail light, you will improve your safety on the road 100% ensuring increased visibility to cars, motorcycles and pedestrians over 650 feet. USB RECHARGEABLE LIGHT - The bicycle tail light charges from your computer or any device with a USB port. This bike light only takes 2 hours to fully charge. Just press the lens to power on - 3 modes: High (3hrs run time), Low (6hrs run time), Strobe (50hrs run time). 100% SATISFACTION GUARANTEE - Your satisfaction is our guarantee! If you aren't happy with the bicycle tail light for any reason within 30 days of purchase, let us know and you get your money back! That's how confident we are.