This is a Carrera Digital 124/Digital 132 Position Tower! It works in combination with the Carrera Control Unit 30352 to provide an LED-display of latest race position and information on each leading car"s laps having been driven. Contents of the box include: - 1 Digital 124/Digital 132 Position Tower - 1 Digital 124/Digital 132 Adaptor Unit Can be used with Digital 132 and Digital 124 systems. Recommended for ages 8 and up.