Description This binder mechanism is made of metal material, not easy to break and durable in use. They are excellent for binding and filing all types of documents, invoices, planners, etc. Widely application, they are suitable for students, teachers, and other people who need them. Features -Color:Silver -Material:Stainless steel -Size:22.00X2.00X2.00cm/8.65X0.79X0.79in -The loose-leaf binder mechanisms are made of sturdy metal. Which are rust-proof, not easy to break. -You will get the binder rings mechanisms for sizes of loose-leaf book, enough quantity for using in different places at one time. -The round rings can be opened and closed when you need to add or remove pages and hold pages securely. -Designed for everyday use, nice for organizing projects, presentations, loose-leaf book DIY, and more. -Suitable for many occasions to use, such as office, school and home, giving you a wonderful experience and bring you a good mood. The loose-leaf binder mechanisms are made of sturdy metal Which are rust-proof, not easy to break You will get the binder rings mechanisms for sizes of loose-leaf book, enough quantity for using in different places at one time The round rings can be opened and closed when you need to add or remove pages and hold pages securely Designed for everyday use, nice for organizing projects, presentations, loose-leaf book DIY, and more