The difference between the first generation of white bricks and the second generation of fans.

The second generation has more bright fan blades than the first generation, increasing the fan area to improve efficiency. The size of Jet Li's building block fan is122.8 mm *122.4 mm * 25mm, which is still slightly larger than the traditional120mm *120mm * 25mm fan. The overall frame belongs to a relatively square design, followed by two colors of the fan (1, white 2, black).

Expand knowledge: Building blocks help to develop intelligence and train children's hand-eye coordination. The arrangement, joints, rings and symmetry in building blocks are all beneficial to children's intelligence. When building blocks, children must involve the issues of proportion and symmetry, which is conducive to the early cultivation of children's mathematical concepts.

Building blocks are good for children's imagination, and different types of building blocks are used to build objects. This is conducive to cultivating their imagination and creativity.

Building blocks are usually cubic wooden or plastic solid toys, and each surface is decorated with letters or pictures, allowing different arrangements or building activities. Building blocks have various styles, which can develop children's intelligence and can be assembled into houses and various animals.