Review on 25-Pack of Grolsch Style Swing Top Seals - EZ Cap Bottle Gaskets for Increased Durability by Laura Belisle

I bought these to replace the seals on my Grossch style bottles which were starting to wear out. They are a bit thicker than the original clasps and I find them difficult to open and close even after a few uses. I'm not entirely happy, I was hoping they would be made out of more flexible silicone like the seals I've had on my bottles. If I were a guy or a bit stronger maybe that wouldn't be such a big problem for me but I'm not like my kids (I mainly use these bottles for kefir which is my kids favorite drink and they always need help opening bottles with these seals). They are of good quality but the difference in thickness is critical for me. I don't think other people would have that much of a problem, especially the guys who brew beer and stuff like that.