Product Description: Durable and Flexible Plastic Binding Rings 1. High-Quality Plastic Construction: These loose leaf paper binding rings are crafted from superior quality plastic material, ensuring durability and reliability for all your binding needs. Ideal for organizing and securing your documents effectively. 2. Reusable with Excellent Toughness: Designed with good toughness, these plastic rings can be used repeatedly without losing their shape or effectiveness. Enjoy a sustainable and cost-effective solution for your binding projects. 3. Easy Manual Binding: The manual operation of these rings is both convenient and efficient. You can easily cut off any excess ring after binding, allowing you to customize the binding to perfectly fit your documents. 4. Multiple Binding Capacities: These binding rings come in three sizes to accommodate various binding requirements. The 11mm rings can bind up to 75 sheets of paper, the 13mm rings can bind up to 85 sheets, and the 19mm rings can bind up to 150 sheets, providing flexibility for different project sizes. 5. Versatile Paper Compatibility: Suitable for 30 holes A4 paper, 26 holes B5 paper, and 20 holes A5 paper, these rings can be cut and adjusted to meet your specific needs. This versatility makes them ideal for a wide range of document formats and binding tasks. Enhance your document organization with these durable and flexible plastic binding rings. Perfect for both professional and personal use, they offer a practical and efficient way to keep your paperwork neat and secure.