2 years & up. Build countless roadway configurations with this 42-piece set that includes various sizes and shapes of wooden roadway. These durable, hardwood veneered pieces are sized to work with unit blocks at a 5" standard width, and easily fit together like puzzle pieces. Ideal for large group play. Builds teamwork, cooperation, and enhances creativity and problem solving skills. Sizes range from 2.5" to 15" long. Community buildings, cars, people, unit blocks, and road signs are sold separately.