Uniform sizing takes the guesswork out of stacking. Made from 5/8in thick, high-density, furniture-grade engineered wood. Hardboard drawer bottoms. Units with drawers have one white and one black set of plastic loop handles. White laminate units are scuff- and stain-resistant. 2-drawer module has cam-lock assembly, metal drawer glides and drawer stops. 4 piece set includes one open module, one with single shelf, and 2 divided modules. Assembly required. USA.