Lego's toy is a child's favorite toy. This plastic building block has cams on one side and holes on the other that can be embedded in cams on the other, with thousands of shapes, each with many different colours, dominated by red, yellow, blue, white, black. It works on its own behalf, and it has the ability to collide in ever-changing shapes, which it loves, known as “magic plastic blocks”. There are also a number of subject series on the market, such as the lego dinosaur series, the lego gas legend series, the lego city series, the lego planet world wars series, the lego superhero series, and the treasurewoods for infants and young children. Lego building toys were created in 2016 to spread lego's brand and culture to every child, to make play the starting point for children to explore the world, to enhance their “players” through lego building toys, and to make each child a capable engineer。