1. Industrial Desktop Shelving Brings the modern industrial pipe style of wallmounted shelving systems and large floor units right to your desktop with a spaceefficient tabletop organizer. Each shelf supports up to 33 lbs of weight. 2. Upgrade Material The column is made of 2.36*1.18in steel column, with temperature paint surface, with 2 layers of adjustable density laminates; not easy to rust, durable and strong. Size: 24.8*7.87*37.4in, 32.67*7.87*37.4in, 40.55*7.87*37.4in. 3. Dual Shelf System Two adjustable shelves stacked vertically provide storage flexibility and aesthetics. There is 12.2 inches of space between the shelves, and the bottom storage space is 20.86 inches , which can accommodate a 28inch computer monitor. The partitions have back and side panels to prevent items from falling. 4. Simple Clampon Installation The double Cclamp secures to tabletops up to 12.75in thick with dual screws that simply tighten by hand, no tools or drilling into the tabletop required, making installation a breeze. The padding provided protects the furniture from scrapes and scratches.