HIC's replacement canning jar rings fit most standard sized canning jars and lids to create airtight, liquid tight food storage containers. Capture and preserve homegrown or seasonal fruits and veggies at their prime for year-round enjoyment or prepare favorite homemade foods in bulk for later consumption. Must haves of home canning equipment, HIC's replacement gaskets are made from European-grade silicone. They are stronger, more durable and more flexible to maintain their original shape and non-stick quality through more uses than using rubber canning jar gaskets.