About this item Metal and Plastic [4 Tier Black Shoe Rack] Free standing shoe rack is made of durable waterproof non-woven fabric layer, reinforced plastic connectors and black thickened metal tubes. Simple structure, but strong load-bearing capacity and good stability. Size:16.3"X10.2"X21.5" [Sturdy and Durable] Waterproof non-woven fabric can be easily wiped clean with a soft damp cloth. The surface-coated metal tubes are smooth and corrosion-resistant, increasing service life [Stackable and Expandable] Purchase 2 or more units that can be vertically stacked for more storage space in same footprint. Or connect them horizontally to expand the skinny slim shoe rack, and combine mini shoe racks into 1 large shoe rack, so you can put on more shoes [Space Saving] It can fits in the closet floor entryway, bedroom, front door entrance, dressing room cabinet or garage for sneakers, flats, high heels, boots. Shoe storage organizer shelf makes your home look more neat and tidy [Easy Assembly] Referring to the listing installation video or INSTALLATION GUIDE in the package, You just need to get tubes through the non-woven layer, and insert them into the plastic connector. Assemble the parts vertically, then it's OK