DBI Sala 7900008 Guardrail Roof Hatch Kit is the portable guardrail system acts as a barrier preventing personnel from falling to lower levels, thus eliminating the fall hazard. This free-standing guardrail system doesn't require attachment to the surface for complete ease of installation. Whether you are setting up the guardrail around the perimeter of a roof or closing off a wall opening, the unlimited configurations offered by the system will easily accommodate your needs. Ideal for use with floor hatchways or chutes, leading edges, skylites, truck or rail docks, floor or wall openings, pits, shafts, manholes and more, the system readily adapts to all applications.