Bring your important belongings with you when you ride with the Bike Coupler Assembly for Trailers. It helps you to connect a cargo unit for your outdoor adventures. Built to fit Schwinn and InStep models, this bike trailer coupler has a special design that keeps your cart upright to protect your contents. Plus, it is designed to last. This universal bike coupler is quick and simple to attach and comes with a strong metal pin for a proper fit. Use it to take up to two kids with you as well.