Bring big ideas to life with Gears! Gears! Gears!® Mega Builds, the largest set in the Gears collection and a powerhouse for hands-on STEM building. This expansive 235-piece building toy includes a wide variety of interlocking gears, bases, connectors, axles, chains, wheels, and specialty components that let kids design large-scale machines that twist, turn, and move. As children build and rebuild, they explore motion, cause and effect, and mechanical relationships while strengthening problem-solving and critical-thinking skills through play. The set also includes a STEM Activity Guide with build ideas to help kids get started, then encourages open-ended creativity as they experiment with their own designs. Durable plastic pieces snap together securely and are sized for easy handling by young builders, making the set ideal for independent play or collaborative projects. Perfect for classrooms, maker spaces, or homeschool learning environments, Mega Builds is compatible with all Gears! Gears! Gears!® sets, so kids can keep expanding their creations as their skills grow. Designed for ages 4 and up, this screen-free STEM toy delivers hours of engaging building fun while supporting foundational engineering learning.