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 1/2" to 15" long. Community buildings, cars, people, unit blocks, and road signs are sold separately.