Collect [&] Build the K NEX Excavator 1 of 4 in the Construction Crew Series This set comes with 120 K NEX parts including bricks rods & connectors to build a construction vehicle with a pivoting cab & working arm There is also a K NEXman to operate the vehicle & construction accessories to play with You can build on the brick plate that is included in the set then combine all four sets & the brick plates become your own actual construction site