Haley's Corker is the World's only 5-in-1 multi-purpose wine stopper. Often called 'the Swiss Army Knife of wine tools,' it aerates, pours, and filters wine, re-corks and is a leak-proof wine bottle stopper! It fits easily into most standard-sized bottles. It's vented for a smooth, perfect pour that's splash and drip free. No more stained tablecloths! It's specially designed to aerate newly opened bottles and release wine's full aroma and flavor instantly. Aerating wine, swirling it in a glass or letting it "breathe" in a wine decanter, is an important step in developing its bouquet and softening its flavor when a bottle is first opened. Avoiding exposure to an abundance of oxygen is equally important, if consuming it at a later date.