Thank you for viewing. This is the science kit "Cloud, Rainbow, and Thunder Maker" for elementary school courses. 【Product Features】 This set allows you to easily conduct weather experiments (clouds, rainbows, and thunder) at home. Perfect for children's science projects and sparking an interest in science, you can enjoy exciting experiments. 【Condition】 Although it is a new, unused item, To reduce shipping costs and offer it at a lower price, we will ship it in the following way: We will open the outer bag just before shipping and transfer the contents to a dedicated "Yu-Packet Plus" box for delivery. The original outer box will not be included (or, it will be folded and included. Please let us know after purchase if you wish). Please rest assured that the contents are new and unused.