Carved rosewood vase bases have been used for centuries to accent and help safeguard fine porcelain and cloisonné vases or ginger jars. The vase fits into the top of the base, cannot slip off and is stabilized by the greater width of the base. Base sizes shown are the interior diameter of the base. Vase bases may be turned into pedestals for art, glass or figurines by inserting round mirrors. If you plan to do this, please let us know when ordering so we can assure the mirror and base match.