I recommend this oral care item.

This is the dental floss I use every single day. If you search online for "interdental brush Type I 50p," it will come up right away. There is a generous amount, and it's thin, so it's convenient and I love it. I used to wear braces—even though my treatment is over—but I'm currently wearing a retainer, and now I feel so empty without floss. Buying individual packs every time is a hassle, and as you know, floss is expensive if you buy it at the clinic. So, stocking up like this saves money and is just great!! If anyone else feels the same way, you should definitely give it a try! They even give you a case when you buy it, so it's super convenient to carry around.