Happy Service Train Express 22 Piece Battery Operated Toy Train Set w/ 4 Train Cars, 16 Railway Tracks by Toy Train Sets Happy Service Train Express 22 Piece Battery Operated Toy Train Set Comes w/ 4 Train Cars, 4 Straight & 12 Curved Railway Tracks Tracks are Easily Attachable Easy Hinge Action to Attach Cars Requires 2 AA Batteries to run (not included)