Interesting wall piece.  It's comprised of two separate layers of tubes attached together with 2 inches between the layers.  There is a welded nut on the top center for hanging with a single nail.  Once hung, the nail cannot be seen.  Easy install.  Experience dictates a 50-50 approval of the piece.  I'm eclectic so, I think it shakes things Up!  Put on bedroom wall.  Bought a similar looking nightstand lamp.  Like it.  I'm so cool!