The Disney Softside 21Spinner features four multidirectional spinner wheels that allow 360 degree upright rolling in multiple directions so there is no weight on your arm. The retractable handle provides easy maneuverability when extended out from the case, and stores neatly inside when not in use. The cross straps secure the contents of your luggage to help prevent shifting that can cause damage. They also help keep the contents of your luggage organized.