Color Black Free Flowing Material Magnetic Sand Gives you a choice to study the concept of a magnetic field, and explore the mysteries of magnets and poles, suitable for adults and children. Students can do science projects using this magic sand. This special toy can improve the coordination of the hands and brain, and also can enhance creativity/ Magnetic sand is used in making magnetic sand timers It is used to magnetize water. Caution: The product has the characteristics of safety and health, please rest assured of use. Note: Avoid inhaling and rubbing your eyes with your hands. Wash hands after use. Suitable for children over 6 years old