Open packaging item, may require some assembly. See link for more details:

Note: Cannot test due to battery requirements. 7 days to return if they do not function. One of the blue rail pieces has part of the connector piece break off in the hole. See pictures for details. 

https://www.target.com/p/monster-jam-booster-playset-1-64-scale/-/A-89970871#lnk=sametab