The Express Panel Systems cubicle walls have metal-to-metal, industry standard, wedge block and draw rod connections. The raceways are plastic snap on and are approximately 5 inches tall. Panels are stocked in 39 inch, 53 inch, 67 inch and 67 inch glazed top sections. Fabric color is a neutral gray with gray / silver edge trim. These modular panels can be installed in countless configurations to divide a workspace.