Dual tire design - two-wheel design makes loading and unloading easy for your hunting game or extra gear. 20”X 4” wheels. More stable and easier to maneuver than single-wheeled trailers. Extra storage - 47″ long, 18″ wide cargo area. The cart features a 3-way adjustable rack system, which can be laid flat, or angled to secure your load properly. The ultimate accessory for getting your harvest out of the field. Compatible - the cart attaches to any Quiet Kat fat-tire bike rear axel, and any other bike with a 3/8″ threaded rear axle. For standard through-axles, you will need a Bob axle from Robert axle project in your specific frame size.