Encourage an early love of STEM learning with this one-of-a-kind City Building Set. Your little engineers can create their own skyscrapers, cranes, bridges and more with 89 easy-to-assemble pieces. Use the included Activity Cards to complete design challenges, or create your own city. It's a unique way to challenge your little one's logic, problem solving, and engineering skills. Details: Multicolored 4.25" x 4.25" Platform measurement Plastic Encourage an early love of STEM learning with this one-of-a-kind City Building Set With 89 easy-to-assemble pieces, this unique building kit challenges kids to build and re-build their own cities Assembly required The included activity cards help guide the building process and offer engineering challenges to help kids sharpen their skills Grades: K+ For ages 5+