I first discovered these plastic drawer units in a DIY store in the 1980s and now use quite a few of them to store various toys, including 1/600 ships, some 6mm 'Modern' kit, and my 6mm Great War figures.
The units are about 21x17x17cm. This is the unit used to store my Great War Germans.
The drawers are just the right size for my fleet of 1/6000 scale ships.
The labelling project is gradually spreading to these units!
Some of the individual drawers are labelled using a Brother label making device I use in the office for making file labels.
The drawers are a handy size to accommodate units for some of the games I regularly play. This pair of drawers contains the whole of German III Corps for Op14.