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 logic, problem solving, and engineering skills.Details:4.25" x 4.25" platform dimensions100 piecesFor ages 5 and upContents:89 buildable pieces10 cards1 sticker sheetActivity cards