Mine is made of 2 sheets of 4'x8' foam insulation board that I cut to 7'x7' to fit the space I have. I covered it in Warm & Natural by stapling it and duct taping it it on the back. Then attached it to the wall with Command picture hanging strips. They're like Velcro so I am able to take it down if I want to (but I haven't, so far). Works great and cleans up with a lint roller. :-)