[Set] 28 grid packs. 21 colors [Polymer clay material] Flat beads are made of safe, environmentally friendly, wear-resistant polymer clay, uniform in shape and size, pleasant to the touch, and bright in color. Children can do a great work safely. [Stimulate the imagination] It has educational importance for children and helps to improve finger flexibility and improve eye-hand coordination. Children can have hours of fun with their parents, cultivate their creativity and their imaginations and learn to recognize colors and letters. It is also an interactive parent-child game. [Various uses] Add accessories, DIY earrings, beach necklaces, bracelets and bohemian beads to suit your personal wearing style. Different letters can create a variety of bracelets or necklaces with special letters, such as your name, name bracelets, and other crafts. [Convenient storage] Flat beads are sorted by color and stored in the storage box. Easy to transport and sort, let the kids have fun and have fun.