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. 100-Piece set includes Activity Cards. Platform measures 4.25” x 4.25”. For ages 5+. Grades K and up.