100 pcs. Double Loop Binding Back 20 Sheets Capacity 3:1 Spacing 34 Loops Set Diameter 6,4mm For A4 Paper . 100 pcs. Double Loop Binding Back 20 Sheets Capacity Silver Characteristic: 1. 2. Metal inner wire: The inside of the binding loop is iron wire, which is sturdy and durable, allowing you to easily attach the paper and store it for a long time. 3. Nylon coating: The outer shell is made of nylon, with good surface gloss, corrosion resistance, wear resistance and long service life. 4. Perfect size: each binding ridge ma 1 or 4 inch diameter and 0,8 mm thickness. Each spine ma a 3:1 pitch and 34 double loops that support 360 degrees of rotation. 5. Binding Lines: These double loop binding wires can be used to bind important documents, files, or reports for upcoming presentations or projects. . 100 pcs. Double Loop Binding Back 20 Sheets Capacity Silver Specification: Item Type: Double Loop Wire Binding Back Binding diameter: approx. 6,4 mm or 0,25 inch Fixture capacity: 20 sheets. A4, 70g. Loop: 34 Loop Result: 3:1 . 100 pcs. Double Loop Binding Back 20 Sheets Capacity Silver List of packages: 100x Double loop binding back . 100 pcs. Double Loop Binding Back 20 Sheets Capacity Silver