1.Wine Pourer & Wine Aerator: The wine aerator stopper is a true dual purpose tool for pouring and decanting. Turn on/off switch can realize the function of wine diffuser aerator or just serve as wine pourer. turn on to fully oxidize red wine and air to achieve timely settling effect; Turns off as a wine pourer. 2.Perfect partner for wine lovers: The professional wine air aerator with on/off is specially designed for wine lovers, with a high degree of practicality and professionalism, meeting the high demands - quality needs of wine lovers for tasting. Suitable for high quality red wine and ordinary table wine. Meet the different needs of different occasions. 3.Stylish Design: The small air chamber infuses air into the wine using the Bernoulli effect for OPTIMAL oxygen uptake. The sturdy plastic spout with silicone cap is easily washable and ready to use immediately. The rubber stopper creates a tight seal for all your favorite wines. The tapered spout ensures that wine does not drip onto your tablecloth. 4.Advanced Innovations: It is a great innovation, you don't have to worry about the unique function of the pourer. Compact and portable design is convenient to carry, which is very suitable for picnic camping or going out for parties. Quantity shipped: 1 piece.