Originally designed as professional display racks for wineries, these Australian pine shelves hold wine bottles in the preferred position, so their corks remain moist. Easy to assemble and dismantle to fit the needs of your wine collection. Patented lock-and-groove design eliminates the need for tools when assembling. Environmentally friendly Australian pine. Exceptionally sturdy crossbars and end pieces are free of knots. 36-bottle rack has 4 shelves; each shelf holds 9 bottles. Includes 8 crossbars and 8 ends. 72-bottle rack has 6 shelves; each shelf holds 12 bottles. Includes 12 crossbars and 12 ends. 108-bottle rack has 6 shelves; each shelf holds 18 bottles. Includes 24 crossbars and 12 ends. A Williams Sonoma exclusive.