USA Z Rack, 5' Base, 6' Upright w/ Bottom Shelf6 Foot Rolling Z Rack with Fold Up Bottom Shelf Our Z5B6U RS garment rack combines the dual convenience of a fold up bottom shelf with an extra foot of height give you more room for hanging garments and loading up the bottom shelf. The bottom shelf is made of 3 16 inch wire grid shape and has a 1 inch lip around the edge to keep items in place, so you can store or move shoes, accessories, packages or whatever you have. Use it backstage at a theater,