Are we the only ones who just learned that "weirdo bird" is a common name for the Cockatiel? Well...this delightful weirdo is available on our Cockatiel tumbler to add whimsy to your day! These 20 ounce, insulated, stainless steel tumblers are an excellent way to keep your drinks hot or cold, and in style too! They hold heat and cold well (we actually recommend letting hot drinks cool to be drinkable before putting them in the cup, that's how well it insulates!), are extremely sturdy, and are dishwasher safe, straw, lid, and all! It is recommended to place the lid in the highest shelf of the dishwasher. Each cup comes with a plastic sip lid and a stainless steel straw.