Floor mount prefabricated Square post,complete with 2 glass clamps for 3/8” to 1/2” glass , pre-welded base flange, cover flange, height adjustable handrail support.Material : Stainless steel AISI 316 grade for exterior use. Satin Finish.  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.