How to use: Release button at the top.

More info:

• Material: Stainless steel (surface), reinforced plastics (inner).
• Size: Approx. 5cm x 4.2cm x 4.2cm(1.97" x1.65" x1.65") Fits standard wine bottle necks.

Great necessity for wine storage. Vacuum pump removes air to halt oxidation process. Let you store wine after opening bottle. Keeps open wine fresh for several days.