The BKRB487 Steel Fence Rail Bracket is designed for tube size 40x40mm and features a sleek black finish. This bracket has a double-lug design for secure attachment and stability. It is made from durable steel to withstand various weather conditions and provide long-lasting performance. Whether you're building a new fence or repairing an existing one, the BKRB487 Steel Fence Rail Bracket offers a reliable and stylish solution for attaching rails to your fence posts.