Fits conveniently into the spout of the bottle, drip free. Dual air intake vents for aeration. * Air blending strainers. Aerating red wine enhances flavors and aromas * Aeration gives red wine - a better bouquet, enhanced flavors, and smoother finish. * Easily aerates wine with air intake system and an air-blending strainer. * Easy to use, easy to clean. Made of acrylic, stainless and rubber.