1[Convenient and Professional] These binding wires ensure quick and efficient document binding with 12.7mm diameter and 34 loops. 2[Versatile Compatibility] With a binding capacity of up to 100 sheets of A4 paper, these wire binding rings are ideal for presentations, reports, and projects. 3[Metal Wire] Made of nylon coated iron wire, these double loop binding wires offer reliable strength and long lasting performance. 4[Easy to Use] The 3:1 pitch of these binding spines makes them easy to insert into punched holes, providing a sturdy and professional finish to your bound documents. 5[Professional Appearance] The stylish polished design of these wire bindings adds a professional touch to your documents, making them perfect for business, school, or individual use. Item Type: Binding Wire Material: Iron, Nylon Binding Diameter: Approx. 12.7mm / 1/2in Binding Capacity: 100 Sheets (A4, 70g) Loop: 34 Loop Pitch: 3:1 100 x Binding Wire Have a great time shopping!