2 PIECE SET contains: 20 inch Carry On (meets carry on size restrictions for those traveling domestically and looking to stay light) and 25 inch Spinner (maximize your packing power and the ideal checked bag for longer trips) USB PORT on 20 inch Spinner for charging devices (battery not included) SMART FIX BUCKLES to keep tie-down straps out of the way when packing 10 YEAR LIMITED WARRANTY: Samsonite products are rigorously tested to ensure our products meet stringent standards. This bag comes with a 10-year warranty against defects in materials and workmanship FOUR MULTI-DIRECTIONAL double spinner wheels allow 360 degree upright rolling so there is no weight on your arm or shoulder BUILT-IN ORGANIZATION including WetPak pocket and zippered mesh pocket