Photo 1 of FORJARS - 100 Regular Mouth. Canning Rings are made of stainless steel. 0.5 Inch Height, 100-Piece Set. Regular mouth mason jar rings are secure with an airtight fit.

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Photo 1 of FORJARS - 100 Regular Mouth. Canning Rings are made of stainless steel. 0.5 Inch Height, 100-Piece Set. Regular mouth mason jar rings are secure with an airtight fit.