Floor mount prefabricated Square Newel post,complete with 4 glass clamps at 90 degrees for 3/8” to 1/2” glass, pre-welded base flange, cover flange, height adjustable handrail support.Material : Stainless steel AISI 316 grade.Mirror Polish finish.For Exterior use in extreme enviroments (Saline, hydrochloric, swimming pool, spa, coastal areas).  Post Dimensions : 1 9/16”x1 9/16” sq. welded base 3 15/16”x3 15/16” x15/64” thickness ,39 3/8” H,adjustable handrail support can be extended 2 1/2” more.