Weck clamps/clips (Stainless Steel)
These perfectly calibrated stainless steel clamps fit universally on all Weck jars. Being stainless steel they obviously will not rust.
Generally 2 clamps are required per jar. For pressure canning, it is recommended that 3 are used.
Make sure you have a few spare in case some get misplaced.
Price is per clamp (not per pair)