This is my first modular magnetized piece. I based it loosely on Arkham Asylum the game....and its meant to interpret one of Arkham Asylums Hallways. I used Blue Styrofoam for the structure. The paneled window wall I made a window out of balsa wood and the 'wood' panels are 2mm thick chipboard. I distressed them and painted them in acrylic paints. The main run wall I added dents and tried to make it look like concrete. I made a grill out of balsa wood and the pipe work is also balsa dowels. I used pastels to add weathering. This is for 7 inch scale figures.