Description Made of silicone, the Sealing Rings for mason jar lids will stretch slightly to fit well. The old silicone seals are easy to wear out after a long time of use, you need to replace the seal ring to make the storage jar have good sealing effects, and work better, very practical and necessary. Features -Color:White -Material:Silicone -Size:9.20X9.20X0.50cm/3.62X3.62X0.20in - The silicone sealing ring is flexible and can be fit your mason jars well, you can install it easily. - Stretchy silicone makes it easy to fix on the cover of your mason jar or other storage jar. - Replacement sealing ring for your mason jar to ensure leakproof and keep food fresh. - Adoption silicone material, mason jars sealing ring is durable and practical for kitchen use. - Suitable for refrigerator and freezer storage, pantry storage, transporting food or drinks without leaking. Package list: 40 x silicone gaskets for Jar