I use corn floss because plastic floss cuts the edges of my mouth. However, as I have teeth with narrow gaps, I need floss which is tough and doesn't break. This is one of the toughest that I have come across with a good grip and very rarely breaks even though at times I will need to give a good yank! Great product and I'm pleased that you do a refill version (not all companies do).
Wild And Stone
Oh, we are so happy you love our floss. We have spent ages making sure ours is tough enough to not keep breaking. A handy tip if you have small gaps is to wiggle the floss rather than pull, it will come out like a dream! And yes, you can purchase the refills which save disposing of glass every time - a win win eco purchase!
The Wild and Stone Team