The quetzal bird flying through clear skies brought to mind the design of these flutes, Cantel Blown Glass Artisans explain. They craft each individual wine glass by hand, using traditional blown glass techniques while creating this innovative design. Because each piece is handmade, shape and size can vary slightly and tiny bubbles may appear within the glass. This exemplifies the hand-blown technique, making every piece a unique example of blown glass craftsmanship.