About this item 【High Capacity】Bind up to 140 sheets of 80g/20lb paper, making it ideal for medium to large documents and high-volume projects 【Versatile Compatibility】Designed to work with U.S. letter size paper (8.5"x11") and ISO standard A4 size paper (8.3"x11.7"), with a length of approximately 12" (36 loops). The length can be easily adjusted with RAYSON coil crimper plier 【Durable Construction】Made from sturdy plastic, these black coils are built for long-lasting use, providing reliable binding for your important documents 【Great Value】Each box includes 100 black coils, offering a cost-effective solution for bulk binding needs, making it suitable for offices, schools, or home use 【3:1 Pitch Configuration】Designed with 3 holes per inch, specifically for 3:1 pitch binding machines. This format differs from the 4:1 pitch, which has 4 holes per inch and requires a different binding machine.
