Weck canning jars are made of thick glass to withstand boiling and sterilization. Glass lids are immune to rusting and can be used to process again and again. Since the lids are made of glass (as opposed to aluminum) there is no BPA coating that is found on metal canning jar lids. The replaceable natural rubber rings, when facing downward indicate clearly that the seal on the jars are intact. Each jar contains 1 glass lid, 1 natural rubber ring and 2 stainless steel clamps.
1 Jar, 1 glass lid, 1 ring & 2 clamps
Height: 4 1/8" Opening: 2 3/8"
Volume: 11.5 fl oz.