Build your very own complex Torus wooden 3D puzzle. The complex Torus contains 864 wooden pieces and all the hardware necessary to assemble this architectural challenge. The torus is a well-known mathematical body, others call it simply "donut".
This impressive form has 60-inch diameter when completed. For designer and engineer-minded 14 years and older.
Something special for architects, designers, mathematicians and engineers as well as for those who want to become one. This special type of construction gave architecture many new impulses in the 1960s.