Cover Variety Track Blocks: This upgraded marble run set includes 4 unique large fun track blocks and 8 regular track blocks, enhancing the possibilities for building exciting marble tracks. It builds upon the foundation of the 97-piece set, offering even more creative options. The set also includes instructions for constructing 7 intriguing models and is compatible with blocks of similar size.

Intellectual Development, Challenge, and Amusement: Marble Run Building Blocks are designed to stimulate intellectual development, challenge young minds, and provide endless amusement. They inspire creativity, curiosity, and enhance skills such as imagination, shape recognition, and spatial three-dimensional thinking. With the freedom to create and build your unique marble run, the possibilities are boundless.

Complete Build & Play Multiple Fun Game Set: With a total of 174 pieces, this set allows you to create a wide range of both simple and complex track models. It's suitable for kids of various ages, promoting inclusive play. Furthermore, it's compatible with other block brands, offering versatility and expansion possibilities.

Steady Assemble and Smooth Marble Run: The blocks are designed with a smooth, comfortable hand-feel, and they easily lock together for steady assembly. As a result, the marble run operates smoothly without interruptions.

Safe, Educational, and Durable Gift: Crafted from high-quality ABS material, these Marble Runs are both safe and durable. They have passed the US ASTM 963 Safety Certificate, ensuring they are non-toxic and compliant with safety standards. This makes them the perfect gift for both boys and girls, combining educational value with endless entertainment.

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