"This curved Vestil galvanized guard rail protects personnel and equipment both visually and physically. U.S.A. Outside Diameter in. 4 5/8, Overall Height in. 12, Mounting Hardware Included No sold w/mounting posts, Includes 1 Guard rail, Material Type Steel, Length in. 48, Application Guard rail, Adjustable No, OSHA Approved Yes, Finish Type Galvanized. Curved Rail 30 1/2in. radius Requires 2 mounting posts Economical systems can be utilized indoors or outdoors Ideal for protecting corners of buildings and machinery from fork truck and vehicle damage Choose between one, two, or three rail high systems Tubular posts are machined for continuous or perpendicular rail mounting Rail mounting hardware included with post Floor mounting kit sold separately"