The Concord Bikes rechargeable rear bicycle taillight is a sleek and practical accessory for cyclists. With a stylish black and red design, this taillight is adjustable and weighs only 0.12 lbs, making it easy to install and carry. It comes with a USB charger for convenient recharging, ensuring that you can stay safe and visible while riding in low light conditions. With a height of 5.91 inches, this taillight is a must-have for any cyclist looking to enhance their safety and visibility on the road.