Cyan Design Tidepool Vase - Medium - The Tidepool collection is a signature illustration of artful hand-blown cased glass. An inner layer of blue glass is sheathed by thick, clear glass. One of the defining features of the Tidepool collection is the captivating presence of captured bubbles within a substantial base. Achieved through the mastery of a talented glassblower, these bubbles add intrigue to each piece, transforming them into riveting works of art. Available in three sizes.