This relates to a pull-out sliding tray assembly (100) which may be used, for instance, in delivering drink bottles or cans (106) using gravity to the front of the tray. In particular, the disclosure deals with one or more trays having a surrounding wall which remains in place during normal use. By raising the front or lowest end of the tray (102), the tray assembly may be slid forward so that the rear of the tray may be filled without necessarily disturbing any bottles or cans already present in the front of the tray. This device is especially useful as an adapter to be used in pre-existing refrigerators or refrigeration units. It may instead form an assembly for use as original or replacement shelves inside an existing refrigeration unit.