Found problems
According to the previous investigation, it is concluded that the appearance design of existing mortise and tenon-tenon toy products in the market is mostly limited to the structural core itself, and the structure and form are single and not interesting enough. Children will be boring when they experience it for a long time.

Design description
The products are improved and innovated from the three levels of appearance, values, and material technology to better integrate with Chinese traditional culture and values. The design structure of the assembly of the spine can be highly integrated with the appearance of the car. The appearance design can capture the preferences of the public children and attract attention. It distinguishes the same mortise and tenon toy products on the market at present, improves the durability of toys and enhances the continuity of play. Secondly, in this era of information development and expansion, children are unfamiliar with mortise and tenon joints. The purpose of this product design is to enable children to feel the unique design charm of mortise and tenon during play, which can effectively stimulate their curiosity and thirst for knowledge, explore beauty, and improve children's judgment, spatial imagination and creativity of beauty.

Values
Combine traditional cultural elements with modern educational toys and inject values-family affection. At the same time, it can also pass on Chinese traditional crafts and integrate them with modern commercial products. Exercise while playing, develop the brain imperceptibly, exercise the logic of the left brain, and enhance the creativity of the right brain imagination. At the same time, each structure of mortise and tenon has its own unique connotation, which is the concrete embodiment of Chinese humanistic philosophy. For example, wedges and dowels, small wedges are like a couple's children, because of their existence, making a family more stable.