Trolley bag hand baggage type of baggage hard shell suitcase cabin trolley approximate size xs suitable for adults colour black bag feature on board luggage iata norm capacity 30 litres maximum volume 37 weight 25 kg height 47 cm width 33 cm depth 23 cm maximum depth 28 wheels 4 wheel properties double wheels 360 rotating series wenger hardside basic material plastic fabric specification abs inner material synthetic fiber material pr