Traveler's Choice TC3900K28 Rome 29 Hard-Shell Spinner Upright Feather lightweight yet extremely durable Polycarbonate ABS hard shell materials for maximum impact The Polycarbonate allows the shell to absorb impact by 'flexing' when under heavy pressure The ABS is then added to give the shell greater rigidity so that it will not permanently deform when Internal retractable aluminum dual-tube telescopic handle with push button system Feature state of the art 360-degree spinner wheels, allowing effortless maneuverability even when