Enhance your paper binding projects with these metal rings. They allow for easy flipping of pages, making them ideal for creating a custom desk calendar or planner. These metal rings are also great for organizing study notes or recipes, providing a versatile solution for various binding needs. Features -Inner diameter: 20 mm -Color:Silver -Material:Iron -Size:4.00X2.50X2.50cm/1.57X0.98X0.98in -Sturdy build: These iron binding rings made of iron are designed to withstand frequent use and can hold a substantial number of pages without bending -Smooth to use: The binder rings have a smooth opening and closing mechanism, making it quick and effortless to add or remove pages as needed -Functional and efficient: With these binder rings, you can easily add or remove pages, rearrange the order, or insert additional materials to enhance organization -Easy to flip: Each binding spine is finely polished. You can effortlessly turn the pages without any restrictions or limitations -Widely used: Our binding book rings are suitable for various applications, including desk calendars, notebooks, photo albums, scrapbooks, presentations, and more Package list: 20 x binding rings