Made from heavy-duty 3mm thick, 1-inch (26mm) wide strips of steel. The inner hole diameter is 5/16-inch (8mm).
Approximate distance of hole centers to 90-degree bend is 0.7 inches (18mm) and 2.55 inches (65mm), respectively.
Powder coated flat black. Sold each. Overall exterior size of L-bracket is approximately 1.1 inches (28mm) x 3.0 inches (77mm).