The rotating glass is an original, top-notch crystal glass that dazzles brilliantly in the light. The glass is modeled with a spherical bottom, intended to allow them to rotate like tumblers. Made with lead-free, non-toxic material for unwavering clarity, this glass set of 6 shines with flawless brightness. For anniversaries, weddings, birthdays, or any other special event, this pair of 6 liquor glasses is ideal.