Narrow slot/finger design provides excellent wire management with smaller wire diameters and high-density components such as terminal blocks, input/output devices and other hardware, Made of lead-free PVC, Rated for continuous use temperature: 122 Degrees Fahrenheit (50 Degrees Celsius), UL94 Flammability Rating V-0, Conforms with NFPA 79-2002 section 14.3.1 requirement for flame retardant material, Available in Light Gray and White, Provided with standard mounting holes, Base and cover length is 6 feet.