World and US Political and Physical 2 sheets
This combo has a total of 4 maps. There are two political maps on the front sheet and 2 physical maps on the back sheet. To expose the back on a spring roller, just flip the political over the roll before you pull it down. Then it will roll down behind the physical map. The maps are finished at the bottom with a solid pine pull bar.. The words "Front" and "Back" are not physically on the map. They are just there on this picture for purposes of illustration. click on any map to enlarge it. Since this configuration has all four maps, It really both a stacked map and a 2 sheet map.