This Carlisle OptiClean 16 compartment cup rack features sixteen 4 5/16" x 4 5/16" compartments, perfect for holding larger diameter cups and mugs in a tilted position. This unique position promotes thorough washing of rims and interiors, while encouraging bases to drain more efficiently during ware washing. This 16-compartment cup rack is made of double wall, reinforced rib polypropylene design, ideal for years of heavy use. You can transport this dish rack full of clean or dirty dishes with confidence due to the easy grip handles. This allows for maximum control when carrying heavy dish loads so you won't have to worry about broken dishes in your busy kitchen. Integrate this cup rack into your current dish washing system with ease as it stacks with other brands of dish racks. Includes 1 extender. Overall Dimensions: Length: 19 7/8" Width: 19 7/8" Height: 5 1/2"