Your Hydroxi expanding dental floss is absolutely great. It's strong and doesn't break. Yet it glides between my teeth easily--even the ones with tight junctions. It's just that the dispenser doesn't hold up long term. I like to buy the refills and when I bought my last box of refills, I could no longer use the dispenser because it had broken. I ended up having to put the refills in a competitor's dispenser that I had on hand (I did not like their floss, btw). So your floss is wonderful, but the dispenser isn't as durable as I'd like.