This is a heavy duty 67-inch cross brace that is designed to perfectly fit your frame and add more tension strength and durability to protect your art work from long term damage. Adding a cross brace can ensure that your frame does not break or bend, and they are relatively easy to install. A bracket set is included in your shipment to attach the cross brace to the frame. This is pre-notched and can be added to a second cross brace if necessary. You should order the same size cross brace as your frame, as these are measured based on your frame size.