Using this product is easy. First, take out Ohguma and Koguma from the set. You can play with them separately or combine them to form parts of RyuteiOh or KyurenOh. When combining, make sure the connection parts fit well. For the best experience, handle them gently to avoid any damage. To maintain the mechas, keep them in a dry place away from direct sunlight. Don't expose them to water or rough surfaces. If they get dirty, you can use a soft cloth to wipe them clean. And remember, the price includes shipping in the USA, but there are additional charges for international shipping.