This ultra light cabin suitcase is the perfect carry on with a tough expandable outer and a 4 wheel system for 360 rotation its practical and smart tsa lock allows you to securely lock the case using a combination code or padlock while airport staff have a generic master key to open if required without damaging the case or the lock instructions on how to set the combination are included dimensions height545 cm width365 cm depthweight28 kg volumecapacity31 l more information