Features: Upgrade your organization with this 30mm rings set featuring 10 colors and metal plastic construction, offering reliabled document binding and creative DIYer solution with included pliers for effortless opening/closing. The 30mm metal binder rings with convenient split open design ensures secure document holding while enabling quick content updates, complemented by rust resistant metal components and ergonomic pliers for smooth operations. Perfect for stationery enthusiasts, office professional, seeking versatile tools for scrapbooking, keychain customization, or multi page document management with color coded organization. Transform school projects, photo albums, or office reports using these sturdy rings as decorative notebook spines, recipe book fasteners, or workshop blueprints holders across home, classroom, and creative studio environments. This multi color rings binder set combines industrial strength metal cores with plastic coatings, delivering 30mm diameter flexibility for thick manuals or layered crafts while maintaining compact portability in toolkits or desk drawers. Specifications: Component: Plastic + Metal Outer diameter of the clamp rings: 30mm Inner diameter: 26mm Line thickness: 2.2mm Type:As Picture Shown Package Includes: 10pcs Metal Binder Rings 1pcs Pliers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.