I was saving this to use during a long vacation. It is unused, but the outer box is deteriorated. How about it for your long vacation? Summer vacation free study Spring break It's the "Chokotto Jikkenbako (Little Experiment Box) Grow Crystals" set. There are 5 crystal colors in total, and you'll have to wait and see which one you get. It contains one of the following colors: green, blue, clear, yellow, or red. How about it as an educational toy for children, or as a way to spark their interest in science? [Product Name] Chokotto Jikkenbako Grow Crystals [Contents] One of 5 crystal colors [Product Condition] Unused [Color] Multicolor (contents are single color) Thank you.