New, set of 2. Please refrain from price negotiations. Dental floss exclusively for dental clinics, with 384 fibers that remove debris from between teeth. When it comes into contact with saliva, the 384 ultra-fine floss fibers, bundled like a single thread, expand softly, removing plaque from every corner in one go. This floss is gentle on the gums and won't cause any harm. ■ Floss recommended by a leading expert in floss research Floor Floss has been tested by a professor at the University of Genoa, Italy. It is a highly reliable product recommended for contributing to gum health. ■ Made in Milan, Italy Milan, Italy, the city of fibers and fashion. In Italy, the use of dental floss is commonplace, and it's used regularly from childhood. Because it's a product made with Italian materials, where dental floss is as common as can be, it's high-quality and very durable. You can use it with peace of mind, as there's little worry of the floss breaking during use. ■ Fine fibers & Afro processing The soft fibers are a key feature. It can thoroughly remove debris from between teeth and plaque near the roots (the base where the teeth meet the gums) without damaging the gums. The thread that looks like one is actually an aggregate of 384 fine fibers (expand type). Each fiber has an "Afro processing" that curls and undulates, firmly removing bacteria lurking in the gums. ■ Amazing plaque adhesion reduction rate The average plaque adhesion reduction rate for the Floor Floss user group is about 70%. This figure is remarkable compared to other flosses, which are around 44% to 50%. It's a dental floss that provides users with satisfaction due to its amazing cleaning effect. ■ Product Specifications Contents: 45m / 250m / 250m (refill) Materials / Ingredients / Contents: (Thread: Polyester), Wax Country of Manufacture: Italy Color: White (thread)