This decanting pourer attaches to the mouth of a wine bottle and mellows the flavor simply by pouring. As you pour wine into a glass, aeration (the process of introducing air to the wine) occurs, removing the acidity and bitterness of young wines. This item allows you to easily upgrade your wine without the hassle of using a decanter. Product Specifications Manufacturer: menu Brand: menu Dimensions: Length → 9.5 cm 　　　　　Bottom → 1.4 cm Materials: Stainless steel, plastic 　　　　　Rubber MADE in Denmark The packaging has some glue residue.