Very stiff

I ordered these in the 4 pack. The ring part is VERY stiff. I had purchased them for my mom. It was so stiff she had trouble turning it into position. I was concerned after I put it on her case because I tried rapidly twisting the ring to somewhat loosen it for her. It got so HOT it burned my finger. Not sure why it would get that hot but I definitely don't think that is safe. I would have returned but I am afraid when I remove it from her case it will pull the finish off, due to the fact you can see it lifted it thru the clear adhesion.

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