The way the joint works where the legs meet the top is ingenious.
It has several overlapping triangles. Very strong. Although LEVEL-it® is made out of wood — the traditional material for workbenches and sawhorses, it has many very modern, high tech features built in.
The triangle is one of the strongest geometric shapes, so having several of them overlap is very strong. The space between the wedge and the LEVEL-it® top allows this critical joint to also have a triangular shape.