This adapter lets you easily attach a variety of child seats to the bottom of the box, ensuring your child rides comfortably and stays well-protected. Compatible with Family models Please note that Urban Arrow accessories are not universally compatible. Please confirm that this will work with your bike before ordering, and give us a call if you&';re not sure! (619) 344-0211 Also note that Special Order Accessories are non-returnable and non-refundable. Return Policy