The Metal Tech guard rail post with wedge clamp support is built to last with rugged steel tube construction. A convenient wedge clamp on the support is easy to install by locking onto the attached scaffold frame. Guard rails (MGR5, MGR7 or MGR10) are sold separately and must be installed along the perimeter of all scaffold structures measuring 10 ft. high or more to prevent accidental falls. Toeboards must also be installed along the perimeter of all platforms to prevent anything from rolling off. Please note that this item is sold individually but 4 posts are required for each scaffolding set.Blue thermosetting polyester finish for corrosion resistanceSolid steel tube construction for maximum durabilityCan be used with both standard mason and arch framesPrecision welded hooks used to attach optional guard rails (MGR5, MGR7 or MGR10)Convenient wedge clamp easily and safely attaches or detaches with any hammer