This one was developed by American Joel J. Founded in 1992 by the Glickman brothers, the building block brand is a rising star in the American toy industry. Known as the "Dream Factory of Creativity" for its good sense of space, the structural design is unparalleled, and has won many international awards, and has been included in the brainstorming and outward bound training programs of many companies. Genius adheres to the ASTM F963-03 standard to ensure that designs and materials do not harm children. Family parent-child and friend gatherings can exchange ideas in the building, achieve the effect of entertaining and educational, and are cost-effective toys.