Manufactured with , practical and for use. Fine workmanship and beautiful appearance ensure the popularity and practicality. Bring a professional and functional look for your report, book, notebook and calendar. Loose-leaf Binder Rings also can bring much convenience to you. Features -Color:Black -Material:Iron -Size:29.70X1.20X1.00cm/11.67X0.47X0.39in -These Book Binder Rings to meet your daily painting needs and convenient for you to turn pages. -Well polished and smooth surface, will not hurt or scratch your hands. A good binding helper for you. -These double-loop binder rings are flexible and convenient to use and storage. It is very helpful. -Manufactured with premium and good iron material, practical and for use. -Widely applied in home, office, school, and other places in need. It will give you a good experience. Package list: Loose Leaf Binder Rings