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Glow in the Dark 20oz Double walled Insulated stainless steel Tumbler. Will keep drink cold for up to 12 hours and hot drinks hot for up to 6 Hours. They come with Clear Slide Lid,  when not in use lid can be closed also comes with reusable Plastic straw.  Comes with a Non-Stick bottom Our Tumblers have a small white border on the bottom and some of our Tumblers have a white border around the Top also depending on the  Design