L-type interdental brush

It's good that there is a separate hygiene cap.

Since interdental brushes aren't meant to be used once and thrown away
It must be stored hygienically.

But once you take it out of the case and use it once, it rolls around and is difficult to store, so the person who made this seems to have good taste.

And because it has an L-shape, it is easy to remove plaque and food debris stuck in every nook and cranny.

You need a straight one, but I think it would be good to buy an L-shaped one and use them together.