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) & are completely BPA & lead-free. Care instructions: Hand wash recommended. Firefighter Tumbler, Gift, Wine Fireman Mom, Birthday, Retirement Wife Gift