Bulldozer Design Elements: Based on a traditional bulldozer, symbolizing "construction, power, and hands-on practice," easily attracting children who love vehicles.

3D Structure: The complete construction vehicle shape (body, tracks, blade) is formed through interlocking parts, enhancing spatial awareness and structural understanding.

EPS Foam Material: Lightweight and safe, with soft edges, it's easy for children to handle and less strenuous to assemble.

Interlocking Design Features: No glue or tools are needed; assembly is done via interlocking slots, lowering the barrier to entry and improving operational safety.

Hands-on Skill Development: The assembly process requires judging the position of components, helping to improve hand-eye coordination and logical thinking skills.

Difficulty Level: Overall difficulty is beginner to intermediate; the structure is intuitive and clear, suitable for children to complete independently or for parents and children to work together.