2 years & up. Turn big building ideas into a big city! These Big City Building Blocks feature an array of blocks to construct tall or short buildings along with trees, bushes, and people to bring the city to life. Each building project supports the development of creativity, gross motor skills, and hand-eye coordination. Blocks are made from natural finished hardwood. Includes: 24 building blocks, 6 people blocks, 2 shrub blocks, and 4 tree blocks.