A balance tension exercise device includes a pair of spaced platforms interconnected by two rigid bars. A plurality of flexible straps span the two platforms. The bars have differing widths to provide different levels of difficulty by a user walking from one platform to another over the bars. Similarly, the straps have different widths to provide other levels of difficulty. Each platform may comprise the top wall of a box. One of the boxes is larger than the other box so that all of the components of the device can be stored in the larger box.