◯ Compatible with almost all commercially available floss threads! Achieves efficient interdental care that is optimal for teeth alignment and gums. ◯ Made of rust-resistant and durable pure titanium material, it can be used for a lifetime! The unique fixing design prevents the floss from coming off mid-use. ◯ Ultra-lightweight at 3g for easy portability! Economical, saving 9,000 yen per year compared to disposable floss! ◯ This product has a bottle opener function, allowing you to easily open bottles. Purchased on Makuake! Regular price: 6,500 yen The box has been discarded, and only the product will be shipped. Please understand.