Expandable length: 40 in - 73 in EZ install: No Cutting - Installs in Minutes Mounts to 2 side walls STEEL TUBES - High Strength and Coated Capacity: 200 lbs per shelf - WITHOUT securing to a stud Hardware Included: Self Drilling, High Strength Drywall Anchors Modular: easily join units to make longer shelves Made in USA certified - 75% Lifetime guarantee