Made of stainless steel to resist bending, breaking or rusting. Topped with plastic safety locks built to withstand tugging, pulling and even machine laundering. Can be used for crafts, baby shower invitations and games, laundry pins, jewelry making, blankets, skirts, knitted fabric, DIY crafts, etc. The item is a set of 12pcs assorted color simple and practical safety pins. Plastic locking closure and easy to open design for convenient to use. Therefore, those safety pins could be used for babies' diapers or adult cloth.