Trolley bag hand baggage type of baggage hard shell suitcase cabin trolley approximate size s suitable for adults colour silver bag feature on board luggage iata norm capacity 35 litres weight 26 kg height 54 cm width 35 cm depth 21 cm wheels 4 wheel properties double wheels 360 rotating series titan backstage material plastic fabric specification makrolon polycarbonate inner material synthetic fiber material properties waterproof locka