This is the original Educational Cogbox design since 1989. This educational tool is intended for students in 1st grade and above, with the primary goal of introducing a number of important principles relative to simple machines and gears. The student gains a basic understanding of gears through play; different configurations are achieved when moving the gears on their triangular matrix board. Each gear is made from solid cherry that sit on a laminated birch hardwood base. The top of the gears have a tough lacquer finish while their sliding surfaces are finished with non-toxic low friction mineral oil. The set is presented in a sturdy green box decorated with gold lettering. An instructional sheet is included, with minimal assembly required.