PRODUCTS INCLUDE: 60 x Domino blocks, 1 x Loading Cartridges, 1 x Train, 1 × Cactus Accessories. You need use 2 “AA” Size Batteries (not included) when you play the domino train. It's a lot of fun while aiding in the development of color recognition, cognitive abilities, spatial skills development. Put the 60 pcs dominoes into the card clip and then put it on the train. The train will move forward and lay dominoes automatically while twisting left and right slowly.