OBL-1160BP.. Large Brass Plated Trunk Corner. Made of Brass Plated Steel. All Dimensions are the size of the Corners when installed. Size is 2 1/4″ x 2 1/4″ x 2 1/4″. Most trunks require 8 corners of this type. Sold by each. Designed with a ball so square wooden corner fit into metal corner with little or no shaping.