on saleTraveler's Notebook Accessory 011 - Connecting Rubber Bands (Passport)

It holds multiple 3.5 x 5 notebooks together. It does the job exactly as well as you think it will.

Work just as intended!

Excellent product

I very happy with these bands so far. I'll have to see how they hold up after constant use, but even if they snap it's only about 4 bucks for another set of four so I can't complain if they do break. The bands themselves, well, like the title says, they're rubber bands. They're made of thicker rubber then your typical rubber band and they're made to fit the size of the passport notebook. In the end they do like they're supposed to. They hold extra books in your case without damaging them so what more can you expect or ask for. Two thumbs up.

They do their job.