I've been using this one for a long time.

I have been using Systema products for several years now.

It removes food particles from the teeth well, and best of all, it doesn't put strain on the gums, so I think it's good.

My gums are weak, so I tend to bleed easily even when brushing my teeth.

Systema products come in various thread thicknesses, so you can choose and purchase accordingly.

I tend to buy and use thin thread whenever possible.

The length is good, and it comes in various scents. I used the mint one last time, but I bought this one this time.

I'm satisfied~ It feels reassuring to buy several whenever I need them~