Spiral Binding
Spiral binding is a popular binding method that involves a plastic spiral coil and a binding machine that makes small holes in the sheets.
The binding machine spins the plastic coil through the holes to hold the sheets together.
This process is also known as coil binding and is most common in binding notebooks, documents, and small catalogs.
This type of bookbinding is very resistant to destruction and allows the sheets to be fully rotated, making it easy to place on a flat service.