Floor mount  Newel Post, pre-welded base flange with 4 holes for 3/8” dia. screws. Material : Stainless steel AISI 304 grade for interior use. Satin Finish.  Post Dimensions :1.66 inch dia. x 39 -3/8” inch H . Welded flange 3 15/16” dia. x 15/64” thickness.