The half-depth, double-width 2:3 module has twice the width of a standard 2:3 Cube, but is half as deep. The half-depth modules were specially designed for shelves where the full depth is not functionally necessary or aesthetically desirable. Modules are made from white-coated MDF, and the rear wall is also coated white. The half-depth, double-width 2:3 module is perfect for storing your paperbacks or DVDs.