My wall is a frame made from timber, I think about 1" x 1" with cross pieces on the corners to strengthen it. I stretched flannel over the frame and staple gunned to the back. It hangs up on the wall on two L shaped hooks. Blocks and smaller pieces stick to it great with no help and because there's a small void behind it, I can pin through it if I want to hang something heavy like a top. My sewing room is so small, I also use it to hold FQs for the current project - just toss them up there, keeps them nice and flat and out of the way! :-D