Give your pet quick, safe access to your bed or couch. The PupStep Wood Stairs are constructed of durable wood with a rich, walnut finish to match any décor. Protective side rails add an extra measure of safety. Folds for easy storage. Available: Large – Great for small- to medium-size breeds. Dimensions: 24"H x 16"W x 20"D. Extra-Large – Great for medium- to large-size breeds or for smaller breeds trying to reach a taller bed. Dimensions: 30"H x 19"W x 25"D.