I've been using these for 3 months now and I haven't broken one. I have some tight back teeth that usually shred floss or I have to pull it through because I can't get it out. These have a tiny bit of give and they are strong. I'm kind of impressed with them.
Love these because of how strong they are. Other floss pick brands I have used break too easily.
I cannot stand anything being in my teeth. This gets it out every time. It’s safe to use if you use it properly. I enjoy buying in bulk because it’s a better value.