12-piece set of re-usable threaded rings:
The screw tops for the Leifheit preserve jars, when used along with the lid, offer "guaranteed success" with the "Finger Test": if a jar is closed correctly, the lid will be sucked inwards and will not give way when pressed with a finger. You can then be sure that no mould will accumulate. Contents: 12 items.
- Content: 12 pieces