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

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

• 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