This is a mixed media painting I did, it measures 16" x 20" x 1" . It is on a stretched canvas. It isnt quite as dark as the photos show, especially around the edges. It is a very dark teal blue in the corners. The edges are painted black and the whole thing is sealed with varnish so it is pretty waterproof. I will wire the back for hanging or you can just hang it on a nail by the upper frame.