15" Knee Wall Hidden Granite Bracket Counter Top Support steel Made in USA This is one (1)- 15" x 2.5" x 1/2" Solid Steel Bracket in Black Screw holes are countersunk for a flush installation. Hole diameter 1/4" Bracket end has beveled edge for safety Economical way to protect countertop investment. Non-intrusive. No corbels needed. No knee knocking Strongest on the Market. Made in USA