2.3 pounds

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Set includes 4 glass fermentation weights and 4 white fermentation lids (including 4 air locks, 4 sturdy white screw-on lids for wide mouth mason jars, 4 silicone gaskets, 4 grommets), and instructions/recipe
Fermentation weights fit ALL wide mouth mason jars (pint-sized, quart, 1/2 gallon, etc) and passed a 3rd party inspection for lead and cadmium.