These BPA-free plastic lids will expand to prevent pressure building inside Weck glass jars when used for freezing. As these lids provide a strong seal and will not react with foods or absorb odors, we recommend them particularly for refrigerator and freezer storage. Microwavable and dishwasher safe.
Fits jar models: 080, 760, 761, 975, 905, 762, 763, 764 and 766
