I need protection for my Traveler's Notebook.

For years of using Traveler's Notebook, I hardly have any frustration(s) until recently.
The frustration(s) are pretty minor things, but it's never a good thing to let frustrations spoil your loves.

This little thing, also known as the tin clasp, and it's task is to hold the elastic bands together.
It's an unique icon for Midori Traveler's Notebook. 

(Related post on Traveler's Notebook and Company Facebook page)