This is a geometric puzzle devised by the inventor of the Rubik's Cube. It is an educational toy for ages 6 and up. A form guide is included. As shown in the fourth photo, the box has some deterioration, but the main body is in relatively good condition. Also, there is no transparent tray. Please note that this item has been stored at home, so please refrain from purchasing if you are concerned about minor imperfections. It will be packaged simply and shipped.