Coil (Spiral) Binding
Coil binding, also known as spiral binding, is a widely used method for binding documents, brochures, reports, manuals, and exercise books. It offers a durable and long-lasting finish suitable for everyday use.

A continuous plastic or wire coil is threaded through punched holes along the edge of the document, allowing pages to turn smoothly and lie flat. This makes coil binding a practical and reliable choice for permanently bound documents.