ISS Designs Shelving Hardware System for 4 Rows of 6-Inch Deep Shelves, 72-Inch Vertical Simple Standards Attractive ISS Designs wall mounted shelving system including two 72-Inch satin anodized aluminum vertical Simple standards and eight 6-Inch infinitely adjustable ISS brackets Easy to install - mount the Simple Standards to the wall, slide the brackets into place, and add your own shelves The system works with all types of shelf material including wood, melamine, and glass shelves; The 6-Inch depth is suitable for paperback books, CDs, and DVDs in jewel cases Load capacity: 200 pounds per pair of brackets mounted 24-Inch to 30-Inch apart Height of Simple Standards: 72-Inch and usable length of ISS Bracket: 5-1/4-Inch