The innovative XS Family Of Toys stimulates creativity, nurtures 3D / spatial skills and promotes problem-solving amongst children aged four to fourteen (and older). The 3D construction toy-brick interfaces with its adjacent ones on all its six faces (unlike just two faces for the conventional toy-bricks now in the market), thus allowing engagement not just in the two vertical directions, but also in the four horizontal directions. The identically shaped components of any XS 3D jigsaw puzzle provide a unique mental challenge to the user. Additionally, the positive interlocking snap of any of these XS toy-components with the mating ones aids robust assembly.