"APW's sturdy and versatile Cable Management Racks are extra wide and deep for multi-position cable hangers, providing superior cable management for any application. Their double bolted design at front and rear, as well as top and bottom, assure maximum rigidity. Designed for 19in rack-mount equipment, these racks are available in two standard overall heights: 47in and 84in. Racks are double bolted at front and rear, as well as top and bottom for maximum rigidity and have EIA spacing with 10-32 or 12-24 mounting capabilities. Plus, a wide array of accessories are available. Heavy-duty aluminum construction with black baked-on finish. Double bolted design at front and rear, as well as top and bottom. Lance mechanism for attaching cable ties inside the channel. Cable tie slots on rear of unit for additional cable management. Comes with an array of accessories."