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 36 litres weight 18 kg height 55 cm width 40 cm depth 20 cm wheels 4 wheel properties 360 rotating series samsonite cosmolite material plastic fabric specification curv polypropylene inner materials synthetic fiber plastic material properties waterproof lockable