These glass trumpet vases are great for creating beautiful flower centerpieces at events. Here's how to use and take care of them: First, before using them for the first time, wash each vase by hand in warm soapy water. Make sure to rinse it really well and dry it with a cloth that won't leave lint. If you want them to look their best, you can clean them with a mixture of equal parts vinegar and water. Let the solution sit in the vase for a few hours, then rinse and dry. Remember, because these vases are made overseas in large amounts for wholesale customers, they might have some dust or dirt on them from being transported and stored. So, always clean them before use. And please don't put these glass vases in the dishwasher, microwave, or conventional oven. Also, note that the flowers and other decorations you see in pictures are not included with the vases.