Organize your 3-hole calendars with our iron binding rings. These openable rings are ideal for DIY enthusiasts who want to create calendars or planners. The practical iron construction ensures they can withstand frequent use, while the easy-to-open design allows you to add or remove pages effortlessly. These binder rings are also great for binding index cards, flashcards, or small booklets, making them a versatile addition to your office supplies. Features -Color:Silver -Material:Iron -Size:4.00X2.00X0.25cm/1.57X0.79X0.10in -Wire Diameter: 2.5 mm -Inner Diameter: 20 mm - iron material: crafted from practical iron, these binder rings are designed to provide reliability for all your binding needs. -Userfriendly snap closure: the easytouse snap mechanism allows for quick and effortless opening and closing of the rings -Versatile use: suitable for binding calendars, notebooks, index cards, and more, these rings offer a wide range of applications -Strong clasp: the robust clasp ensures that your documents are securely held in place, preventing any accidental slips or losses -Ideal for diy enthusiasts: ideal for diy projects, these iron rings can be used to create planners, photo albums, and other creative items Package list: 10 x desk calendar binding rings