The Eastern Box Turtle is one of those species that is so common but is always exciting to see. Gwen's bold illustration on this tumbler is your opportunity to see this beautiful box turtle every 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.