US Patent 7517269 Building element for constructing a modular substructure

A building element suitable for use in supporting model building sets. The building element is configured to be removably secured to a plurality of like or similar building elements to form a modular substructure for supporting model building sets. To that end, the building element may include a plurality of connector fitting arrangements disposed on the surfaces of the building element. In one embodiment, the building element is configured to be separable into half-sections and quarter-sections.