Corkcicle Iridescent Stemless 355ml - PrismaticInsulated Stainless Steel Cup Why we love this drinking tumbler The Corkcicle Stemless is absolutely perfect as an unbreakable 'glass' for your wine or cocktail at the beach, around the pool or on a picnic! But of course you can use it for any hot or cold beverage. BPA-free plastic lid with a spill-free opening. Made from triple-insulated stainless steel to keep drinks cold for 9 hours or hot for 3 hours. Fits standard-size drink holders and under most single-serve coffee makers. Ice lasts twice as long in the Corkcicle Stemless compared to plastic tumblers. Has a non-slip base. SPECS Volume: 12oz (355ml) Height: 11.51cm Diameter: 8cm (6.5cm at the base) CARE NOT microwave safe. Corkcicle recommends hand-washing all Corkcicle products to keep them working just right.