The pour spout made of 18/8 stainless steel, food grade material and 100% non-rust. Many similar liquor pourers use plated copper instead, which many countries consider hazardous to public health and have banned use as a food safety precaution.These black Pour Spout plastic caps are an inexpensive and useful addition to any of our standard metal bottle pourers. The cap acts as a barrier to fruit flies and other pests. They are a great way to keep bugs and dirt out of your pourer spout and out of your liquorTheses tapered design liquor spirit wine alcohol pourer offers control, accuracy, and the most perfectly consistent pour speed every time. When you use our liquor pour spouts you will experience less spillage and less messPopular use in the home,restaurants,coffee shops bar,nightclub,cocktail bar. Try it out on bottles of spirit olive oil,vinegar,liqueurs,bourbon,wine,juice,and other products you use frequently. It will offer the same great benefits