These vases are very versatile. You can use them as flower vases by simply filling them with water and putting your favorite flowers inside. Or, place a candle in them to create a warm and cozy atmosphere. When using them as candle holders, make sure to use proper candles that fit well. Before using these vases for the first time, you need to clean them to get rid of any dust or dirt that might have gathered during transit and storage. Just use a soft cloth and some mild soap to clean the inside and outside of the vases. After cleaning, dry them thoroughly before use. That's all there is to it! Enjoy using these beautiful vases to decorate your space.