This is a Carrera Digital 124/Digital 132 Adaptor Unit! It is the connecting section for Driver Display 30353, Startlight 30354 and Position Tower 30357. Contents of the box include: - 1 Digital 124/Digital 132 Adaptor Unit measuring about 13.58" long Can be used with Digital 132 and Digital 124 systems. Recommended for ages 8 and up.