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.

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.