How is a spiral notebook bound, and what distinguishes this binding method from other types of notebooks?

Spiral binding is a common method of binding notebooks. Here's how it's done:
The spine of the notebook is punched with holes, usually with a special machine called a "spiral binding machine". These holes are punched in a line along the spine.
A spiral wire is then threaded through the holes, usually from the top to the bottom. The wire is often made of strong, flexible material like plastic or metal.
The wire is then twisted or coiled to secure it in place. This twisting action causes the wire to expand and press against the spine, securing the pages in place.
Finally, the ends of the wire are often trimmed and bent to prevent them from scratching the user's hands.
Spiral binding distinguishes itself from other types of binding in a few ways:
Flexibility: Spiral binding allows the notebook to lie flat when opened, making it easier to write and read. Other types of binding may have a more rigid spine that doesn't allow for complete flatness.
Durability: Spiral binding is generally more durable than other common binding methods like stapling or glue binding. The wire spiral provides a strong, long-lasting connection between the pages.
Easy page turning: The spiral binding allows for easy and smooth page turning, which is important for efficient note-taking or reading.
Consistent spine: Spiral binding creates a consistent spine that doesn't crack or split like some other binding methods can do.
In addition, spiral notebooks can be easily and quickly refolded and resorted, making them popular for students and professionals who need to access information quickly or take notes during meetings or classes.