The Oxo Steel Aearting Wine Pourer features a generous opening that allows wine to breathe as it cascades into the glass. The air circulates on both sides of the stream for maximum aeration while pouring. The wine will flow elegantly over the stainless ring. The pourer aerator has flexible ribs on its base to ensure it fits on any size wine bottle. The aerating wine pourer from Oxo is dishwasher safe and comes in a gift box.