Add Burley's Walk 'n Roller Kit (left) to easily convert your trailer into a stoller. The low front wheel makes steering and handling effortless. Or add the Jogger Kit (right) to make your trailer into a durable jogger suited for off-road use complete with a 16-inch wheel and hand brake. With both options, no tools are required, and there are no additional parts to take off and store; they're always with you and you're always ready to roll!