Wooden Nut & Gear Building Blocks, 3D Puzzle Assembly STEM Toy for Kids, Learning Tools Imagination, Birthday Christmas Gift, with Wrench

Mechanical engineering assembly: a combination of colored gears and screws and nuts, rotating the knob to drive the gears to rotate, enlightening the understanding of mechanical principles, and cultivating engineering thinking. Equipped with tools, fine operation: Equipped with a straight screwdriver and wrench, learn to use tools to assemble parts, exercise hand eye coordination and fine motor skills. Versatile creative combination: Multiple colorful gear components can be freely combined, supporting three-dimensional shape stacking, inspiring imaginative and spatial thinking. Multidimensional ability cultivation: From color recognition to structural design, enhance focus, patience, and problem-solving skills during assembly, and learn through play. Safe and durable: Selected solid wood material, rounded corners polished without burrs, resistant to falling and durable, more reassuring to assemble, suitable as creative gifts for birthdays, Halloween, Christmas, and New Year.