
Comparing these lids to Ball Mason's plastic lid, these lids are made of thin plastic with no security tag on the inside and are BPA-free. Came with silicon rings for small lids but not for big ones. There were so many positive reviews that I took a chance and bought these Chinese made caps. I'm not sure if it's food grade material. Also, I don't think they're sealed or dishwasher safe as advertised and will go back and buy US made BPA-free mason lids.

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