Use:
When canning fruits or vegetables, jar inserts protect the fruits or vegetables from oxidation.

We simply put the plastic jar insert on to the fruit or vegetable in the jar and close the lid. This way, the fruits or vegetables are fully immersed in liquid and can not oxidate. Plastic jar inserts extend the lifetime of your canned fruits or vegetables.
Plastic jar inserts are made from health friendly plastic material.
They are suitable for cleaning in dishwasher.
Unlimited reusability.
With practical feathers for easier extraction from the jar.