Two super popular vehicles are now available in a double set!It is possible to connect E5 series + E6 series according to the actual organization.NEW Mechanical box specifications make it even easier to play!Both E5 series and E6 series can be separated from 2 speeds and 3 cars.When you pull the lever of the third car, the magnet coupler will appear.Series E5 Shinkansen: Uses 1 AA battery (Not included)Series E6 Shinkansen: Uses 1 AA battery (Not included)*Rails are not included in this set.