The components are easy to assemble and modular to fit with one another. Each cube holds 24 wine bottles. Bottles with sloped shoulders (eg Pinot and Burgundy) may not stack well in bin, diamond, or open shelf storage, and may be better suited for individual bottle storage. Requires assembly (hardware is included.) Set includes 4 cubes. Our pine cube is affordable, sturdy, stackable and expandable. Each quadrant holds 6 Bordeaux bottles, and will accommodate bottles of all shapes and sizes.