This stool has a seemingly radical structure, which is actually very sound and stable. The basic principle used is that intersecting surfaces enhance the integrity of a structure, by distributing forces along the central axis.
Two planes of plywood interlock to form the stool, and can be assembled easily, and disengaged and flat-packed just as easily.
When seen from the front, the stool resembles a pair of crossed legs, from which the name is derived.
