There is provided a trolley mechanism for wheeled luggage, the wheeled luggage comprising four luggage wheels at a lower surface of the wheeled luggage and a deployable trolley handle at an upper surface of the wheeled luggage such that, in use, the wheeled luggage may be manoeuvred about by the deployable trolley handle in a substantially upright orientation supported by the luggage wheels and wherein the trolley mechanism comprising a deployable trolley deck, the trolley deck being pivotally coupled substantially at the lower surface of the wheeled luggage at a proximal edge of the trolley deck and having at least one trolley wheel at an opposite distal end of the trolley deck such that the deployable trolley deck is pivotally configurable between: a stowed configuration wherein the trolley deck lies against a surface of the wheeled luggage; and a deployed configuration wherein the trolley deck is deployed at a substantial right angle to the surface such that, when the wheeled luggage is in the substantially upright orientation and supported by the luggage wheels, the trolley deck defines an upper load bearing surface for supporting additional luggage thereon and wherein the trolley deck is supported at the distal end thereof by the at least one trolley wheel.