Coravin is a revolutionary system that allows you to enjoy wine by the glass without pulling the cork. This is done with a highly specialized needle combined with argon gas in an integrated system. The needle penetrates the cork, allowing the flow of wine while simultaneously fillingthe air space in the bottle with inert argon gas. Once your glass is poured, remove the needle and the cork naturally reforms, leaving the remaining bottle contents perfectly preserved. Coravin is ushering a new era of wine by the glass. See the latest model at Feldman's today.