DESC: Four, multi-directional Spinner wheels for easy mobility Rolls upright so there is no weight on your arm Mounted Travel Sentry® combination lock on Spinners provides additional peace of mind when checking belongings, but can still be easily accessed by TSA agents in the event the case needs to be searched Ergonomically-designed, one-hand lift, dual tube aluminum handle with comfort grip, locks in place when not in use Right Height handle system allows handle to extend an additional 3 to accommodate taller travelers