... oz(450ml) 3)Clean,Durable,Elegant,Practical Double Walled Stainless Steel Beer Mug/Tankard Drink in style with this large 16 ... fl. oz double-walled stainless steel beer stein. Brilliant reflective finish. Made of heavy gauge 18 ... life and drink responsibly. Works great for a root beer float, too! Personalized engraving service available. Double Walled Stainless Steel Beer Mug