This 12” BEST medium duty cross brace is designed to work with BEST stretcher bars. They are a great way to add more support and stability to your artworks that are larger than 36”. These are easy to install and work with for artists of all backgrounds. Combined with stretcher bars they can extend the life of your artwork, and they are especially important to install when you hang your artworks. They are made of durable and high quality pine, and because pine is a sustainable wood they are affordable. Conveniently pre-notched to add a second cross brace if you need to.