The binding is the whole decision. A spiral opens completely flat and folds back on itself, which is what you want writing on your knee or in a meeting with no desk room. The wire is also what snags on other contents in a bag and eventually distorts, after which pages tear out. Twin wire holds shape better than a single coil. See twin wire notebooks and notebooks.

Spiral Notebooks

Spiral Notebooks for Notes and Study

Shop spiral notebooks for school notes, meetings, planning, journaling and everyday office writing.