Vitreous glass on MDF, 16" x 13" I had a hard time photographing this, so I had to use the flash. If I had it to do over I would embed the antennae wire. I had first grouted the inner wings the same tan as the background, but it looked sloppy to me, even though I had painstakingly taped off the black, so I grouted it black. I think I would prefer the orange ungrouted. Oh well, it's done!