These are kid manual materials, made of metal materials, durable and safe. Designed specially for kid. They are wonderful ways to arouse your baby's color cognitive competence ability, In addition, your baby's muscle can also be exercised greatly. Features - Color: Assorted Color. - Material: Metal. - Size: About 0.4x0.4x1.5cm/0.16x0.16x0.59inch. - Made of metal material for durable and safe use. - Children can create works of their own volition and will definitely be interested in this form of mental exercise, they also cultivate the child's hands-on ability, the coordination ability, the fine movement cooperation ability, the color recognition ability and the three-dimensional thinking mode. - Your kid will enjoy the happy and funny childhood time. - for scrapbooks, autograph books, greeting cards, photo album, souvenir books, flower accessories, toy etc. - Widely used in DIY craft accessories such as scrapbooks, signature books, greeting cards, cards, photo albums, souvenirs, flower accessories, toy accessories and paper products accessories.