The easy-rolling Copilot Model A Bike Trailer enables you to comfortably tow two children as you bike along city streets. It features a redesigned mounting system that's easy to connect to your bike and lighter, stronger spoked wheels with thorn-resistant tubes. The interior includes thick, plush padding, fully adjustable five-point harness and plenty of elbow and leg room for up to two kids for a total of 100 pounds . When you're finished with your biking excursion, the Model A quickly converts to a stroller in just a few seconds, and it disassembles quickly when you reach home. Other features includes brightly colored fabrics that will be highly visible on the road and a storage trunk for extra clothes or groceries.