SafePro Roof Hatch Safety Rails are patented and made of 100% steel, not fiberglass. The entire system consists of 10 bolts and four rails, and it can be installed in under 30 minutes. SafePro safety rails come with a 20-year warranty, and a three year finish warranty. The design is ergonomic, OSHA compliant, and eliminates the need for a ladder up or a telescoping pole. The self-closing gate provides two additional ladder rungs for safe and easy access to the roof.