A drawer for an airline trolley, which has a generally rectangular tray, is closed by a lid. The lid has a flap which is openable, and the drawer has a lock unit with which the flap engages. The lock unit is lockable by a breakable seal. The flap can be hinged about a line extended across the lid at a position forward of the back of the tray. The flap can be connected to the sides of the tray by webs which fold under the flap in its closed position, the webs preventing access to the interior of the tray under the lid. The flap can have a catch at its forward end which engages in a lockable chamber on the front of the drawer, a breakable seal being insertable into the chamber to engage the catch.