Rayson 7/8" Plastic Spiral Binding Coil, 190 Sheets Capacity, 4:1 Pitch 22.2mm Black Coil Binding Spines for Business and Educational Purposes, 50 Pack — Open-Box, 56% Off

High Capacity: Bind up to 190 sheets of 80g/20lb paper, making it ideal for larger documents and high-volume projects

Versatile: Compatible with U.S. letter size paper (8.5"x11") or ISO standard A4 size paper (8.3"x11.7"). Length: About 12" (48 Loops). The length can be easily adjusted to fit your needs using RAYSON coil crimper pliers.

Durable Construction: Crafted from sturdy plastic, these coils are designed for long-lasting use. Great Value: Each pack includes 50 black coils, offering an affordable solution for bulk binding needs

4:1 Coil binding ring means per inch has 4 holes (This is very important distinguish 3:1 pitch from 4:1 pitch cause the things to be as different. 3:1 means per inch has 3 holes. They are used with different binding machine.)

Designed for 4:1 pitch coil binding machines, these spiral binding coils are ideal for reports, presentations, and office projects. A practical and thoughtful gift for professionals, educators, and students alike

Streamline your document organization with RAYSON 50-pack of 7/8" plastic coils spiral binding . Designed specifically for 4:1 pitch coil binding machines, these durable, flexible coils are perfect for creating professional-looking reports, presentations, engineering files, and office documents. With a capacity to bind up to 190 sheets, they offer the ideal solution for high-volume projects, whether in the office, school, or home setting. Made from sturdy plastic, these black binding coils provide long-lasting durability while maintaining flexibility to allow documents to lay flat for easy reading and note-taking. Whether you're a business professional, educator, or student, these coils make assembling multi-page documents effortless and efficient, consider all the uses.