Versatile use: Perfect for organizing binders, paper cards, key rings, file stacks, keys, and color cards. Color-coded organization: Nine different colors help classify files and make it easy to locate specific documents. Durable and reusable: Made of sturdy metal material, ensuring long-lasting use and easy opening and closing. Ample quantity: Each set includes 36 pieces, providing enough binder rings to meet all your needs. Suitable for any setting: Sleek and modern design makes it suitable for use in schools, offices, and other professional environments. Item Name: Binder Ring Material: Metal Key Accessories Classification: Key Ring Features: 4 Colors, Heavy Duty, Small Size Details: Outer Diameter: 3cm/1.18" (Approx.) Inner Diameter: 2.5cm/0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 36 x Binder Rings (9 Colors, Each Color 4Pcs)