• Fun gear building blocks: This 68-piece set combines creativity with interlocking gears and building blocks. It allows children to explore different types of constructions and imagination, taking them into the world of science and simple mechanics. • Explore mechanical principles: Uses gears as the central concept. By building and connecting the blocks and gears, children can turn the handle or press the gears to set the entire model in motion, feeling proud and satisfied with their creation. • Inspires imagination and creativity: The flexible blocks and gears allow children to create multiple designs and shapes. Compatible with most major block brands, they encourage unlimited use of imagination and creativity, developing reasoning and problem-solving skills. • STEM educational toy: This set includes 8 gears of different colors and shapes, and blocks of various sizes. Ideal for children to learn to sort, match, count, design, and build, while gaining valuable learning experiences through the movement of the spinning wheel. • Fantastic gift for children: Perfect as a birthday gift, preschool learning gift, and holiday gift for boys and girls. • Product dimensions: 22 cm wide, 10 cm high, and 22 cm long. Total weight: 0.83 kg.