20 oz Malt Brothers Brewing – Heavy Metal Mary – Stainless Steel Tumbler, with clear lid and metal straw. Vacuum seal keeps liquids and carbonation fresh.  Made from double-walled non-leaching and non-toxic stainless steel. Full top to bottom imprinting – Easy-to-grasp shape – Secure slide lid with easy opening – Stainless steel construction – Hand wash – Includes metal straw