FEBEEK Airtight Glass Storage Jars Set of 4 with Hand Pump & Base

NOTE:
Do not open the lid forcibly in a vacuum sealed state to avoid damage.

Turn the one-way valve while closing the lid to ensure that the lid is closed in place.

Please check whether the one-way valve and sealing ring are installed in place before use.

It can be used as an ordinary airtight jar to store cereals, biscuits and other foods.

It can be used as a vacuum sealed tank to store coffee,vanilla and other food with the manul pump.

Ideal sealing, In the vacuum-sealed state, the sealing lid is difficult to open.

Toggle the one-way valve in the middle of the sealing lid, it is easier to open after the air enters.

There is a silicone base to protect the glass jar and facilitate stacking.

Under normal use, the white light is on; The power indicator light is green; The seal fault indicator light is red.

There is a spherical membrane in the center of the one-way valve. In the vacuum state, the spherical membrane will be recessed.

Please do not block the air hole at the bottom of the sealing lid.