Mesmerizing with cobalt transparency, this set of extra-large 20 oz tumblers evidences the allure of Mexico's blown glass artistry. Javier and Efrén design and craft these singular pieces with traditional blown glass techniques. 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.