About this item Upright Sections : Vertical compartments keep file holders upright and organized, allowing for easy access to documents. Mesh Material : Constructed with durable metal mesh and sturdy steel for enhanced ventilation and long-lasting use. Expandable Design : Combine two or more units to create a personalized organizing setup tailored to your workspace. Easy Installation : Quick and simple assembly with included instructions --> No tools required. Dimensions : 8. 25" D x 13. 85" W x 7. 5" H; 2. 25" width per vertical file section. USPTO Patent No: D890,842 Material: Metal Color: Black Special Feature: Expandable Product Dimensions: 8. 25"D x 13. 85"W x 7. 5"H Shelf Type: Tiered Shelf