Keep open wine fresh for up to two months with these patented bottle stoppers. Compact and portable, these stoppers contain capsules of organic material that bond with the oxygen in the bottle, removing it and perfectly preserving the flavor. The stoppers create a secure vacuum with noticeable suction for a complete seal. Dispose of the stoppers when finished using. Quantity: 6 stoppers Materials: Plastic, rubber seal Details: 1 stopper keeps 1 750ml wine bottle fresh for up to 2 months Use: Remove tab and insert stopper into bottle