Trolley bag hand baggage type of baggage hard shell suitcase cabin trolley approximate size s suitable for adults colour black bag feature on board luggage iata norm capacity 37 litres weight 25 kg height 56 cm width 34 cm depth 23 cm wheels 4 wheel properties double wheels 360 rotating series hardware profile plus material plastic fabric specification makrolon polycarbonate material properties waterproof lockable combination lock tsa lo