The Pro-Series Scaffolding Guard Rail System allows you to work with improved safety when you re up high. It has a powder coating to protect the frame from rust and corrosion so you can leave it out in the weather. This product is designed for use with the Pro-Series Six-Foot Multi-Use Scaffolding Unit (not included) and is simple to set up. Bring it to any job where you re painting the exterior of a tall building cleaning windows or installing anything above where you can naturally reach. The unit conforms to both ANSI and OSHA regulations for safer working conditions. It weighs only 56 lbs which makes it light enough for one person to carry when it s disassembled. Its one-inch tubular steel frame is strong enough to hold up to lots of work.