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

• [ Materials] Made of premium metal iron wire with nylon coating, these binding coils ensure durability and provide resistance to corrosion and wear.
• [High Capacity Binding] These double loop binding spines can hold up to 40 sheets of paper, perfect for binding multiple documents together for presentations.
• [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.
• [Professional Results] Achieve professional-looking documents with these high-quality binding spines, suitable for important presentations and projects.
• [Versatile Compatibility] Compatible with most wire binding systems, these coils are ideal for various projects and reports, offering long-term storage capability.

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