Installation: The installation process is very simple. Complete accessories and installation instructions will come with the handrail. It can be easily installed on wood, brick, and concrete walls. Specification Color: Black Material: Galvanized Steel Length:100cm Pipe Thickness3.2cm Package Included: 1 Handrail Stair Rail 1 Phillips screwdriver Note: 1.Please allow some measurement error. 2.If any problem with the order or item, just contact us, we will provide the best solution to help you. SPETLEK Handrail Stair Rail Grab Balustrade Metal Staircase in Black