Traveler's Choice Bohemian 21" Hardside Carry-On Spinner Luggage (Purple Made from polycarbonate ABS materials Each piece was made to absorb impact by flexing while under stress, then popping back to its original shape, protecting its contents Multiple-stage retractable 2-tone aluminum handle system Multi-directional spinner wheels allow 360 degree upright rolling in multiple directions Expandability increases the packing capacity by 30%