This flat bar is called Roman banding bar and it's used for a number of things, but one of which is on newel posts. Each banding bar is 9-16"" wide, 5/32"" thick, 97"" high and weighs 1.73 lbs. The bar can be shipped via UPS. Enjoy a quantity discount when you buy 80 or more.
[BB] Forged Steel Baluster Topper. Two Flat Bar C Scrolls that fit over 9/16" (12mm) Sq. Bar. 8-1/4" Width x 6-11/16" Height.