Using this product is easy! First, take out the 3 core mecha from the set. You can assemble them to form the 9.8 - inch Engine Oh by following the simple connection points. To create more combos, look for other robos in the Robo Universe line and connect them to your core mecha. When playing, be gentle with the connection parts to avoid breakage. After you're done playing, store the mecha in a cool, dry place to keep them in good condition. If any parts get dirty, you can use a soft, dry cloth to wipe them clean.