Abstract: A construction toy set comprising a plurality of first rod or block elements having a torus at one or both ends, a plurality of second rod elements having a C-shaped gripping clip at both ends and a plurality of third rod or block elements having a torus connecting element at one end and a c-shaped gripping clip at the other end. These rod and brick elements are assembled in a combination of different ways to create two and three dimensional structures.

Abstract: A construction toy and education set for assembling two and three dimensional structures comprising a plurality of rod elements having C-shaped gripping clip at both ends at least one three-dimensional sphere-like connecting elements formed of a torus connecting element into which one or more torus segments are attached.

Abstract: Toy brick or block elements in particular of artistic and educational type, in which a plurality of brick elements made of a variety of different colors and a variety of different shapes are interlocked between each other by means of tongues and corresponding grooves to build a great variety of precise and coherent patterns or designs.

Abstract: A construction toy comprises a plurality of struts and a plurality of strut joining or interconnecting pieces. The struts are elongated members each having a ball at both ends, and each joining piece has at least two sockets each to receive and retain a strut ball. The strut balls are rotatable in the joining piece sockets, thus allowing the struts to be disposed at different angular positions relative to the sockets.