Value Set: 10 colors, approximately 6mm in diameter, approximately 30cm in length, for a total of approximately 300 pieces. Highest quality materials: The seals are made of steel wire and fiber, and can be bent, twisted, curled, and shaped in various ways. Great for DIY projects in kindergartens to foster intelligence and individuality. You can make toys, decorations, dolls, birthday cards, and more, depending on your ideas. Enjoy heavenly fun with your children; it can also be used by elementary school students when they are working on projects.