The USED but not-in-use brushettes:

The Brushette® concept allows you to keep a range of different heads available to meet your needs. To facilitate this, we developed Holdette® an antibacterial silicone base that will enable you to store your brushettes hygienically between each use.

The NEW but not-in-use brushettes:

The new brushettes (aka the packets, or berlingot) can be stored in a clear bowl for easy dispensing.