Replacement Preserving Kilner Style Jar Lids 8.4cm 12 Pack The replacement lids for Leifheit pickling jars together with the Leifheit screw rings deliver guaranteed success as a result of the finger test. If the pickling jars are not properly closed, the lid shrinks inwards due to the developed vacuum and does not give way under finger pressure.This ensures that no mould can develop. BPA free Not suitable for fatty food products Content: 12 jar lids Suitable replacements for Leifheit jamming jars Rust Proof metal Single product dimensions 8.3cm x 0.3cm x 8.3cm