What’s the best part about dominoes? Of course knocking them over! Stacking them up in the first place takes time, patience, and a level of self-control that a small amount of the population possess! This automatic domino brick laying toy train will take the pain and time out of that entire process. Just fill the domino brick cartridge with the bricks, place it into the top of the train, and press the start button. The train will then start to move forward and drop bricks intermittently behind it. The bricks will be spaced perfectly apart to be knocked down!