Water He did turn into wine! What better way to be reminded of the miracles that only God can perform in our day to day life in the most simplest of ways. These practical 12 oz wine tumblers are amazing for summer outdoor parties, as they feature a double-wall, vacuum insulation that keeps your wine perfectly cool for hours. They are made of 18/8 gauge stainless steel (also known as Type 304 Food Grade) and are completely BPA and lead-free. Care instructions: Hand wash recommended.