100Pcs Double Loop Wire Binding Spines 34 Teeth Binding Spines Combs Ring Coils 3:1 Pitch 7.9mm Diameter 40 Sheet Capacity Twin Loop Spiral Binding Coil Spiral Notebook

Specification:Item Type: Double Loop Wire Binding SpinesMaterial: Iron, NylonBinding Diameter: Approx. 7.9mm / 5/16 inchBinding Capacity: 40 sheets (A4, 70g)Number of Teeth: 34Pitch: 3:1How to Use:Install and use!packing list:100 x Binding Spines

• [Precise Design] With a 3:1 pitch, 34 double loops, and 7.9mm diameter, these coils allow for 360-degree rotation and easy binding of important files.
• [ Materials] Made of premium metal iron wire with nylon coating, these binding coils ensure durability and provide to and wear.
• [High Capacity Binding] These double loop binding spines can hold up to 40 sheets of paper, for binding multiple documents together for presentations.
• [Versatile Compatibility] Compatible with most wire binding systems, these coils are ideal for various projects and reports, offering long-term storage capability.
• [Professional Results] Achieve professional-looking documents with these high-quality binding spines, suitable for important presentations and projects.