Too tight
As others have noted, this fits too tightly; it's unusable.  However, I do like the silicone braces that came with this.  They are better than braces I had purchased separately earlier.  The mask extenders are like many others that are being sold.  Frankly, I have trouble using them.  My mask has flat, cloth strips.  The extenders would probably work better with masks that have strings.
Rating: 2 stars