Better than others I’ve purchased / received
I’ve used about 4 kinds of these extenders. One was flimsy and contorted under hot water. One was short and made everything extremely tight. Another had smaller prongs which made it difficult to impossible to use it with masks with thicker earloops.  This one is a nice material and I don’t feel like it’s ripping my hair when I take it off, it holds earloops of thin and thick mask and has well placed adjustment points.
Rating: 5 stars