Good for throw away masks only
The silicone in this needs to be sturdier for fabric and n95 masks.  These are great ONLY if you are using the throw away kind. I will say that these are difficult to use for me even after several uses.  This is not singular to this particular product as I have run into this with other brands as well. It simply the design and nature of trying to hook one end behind your head.
Rating: 4 stars