Unicorns and Dinosaurs 20 Oz Skinny Tumbler. Can be used for hot or cold. This Unicorns and Dinosaurs 20 0z. skinny tumbler is perfect grilling, camping, beach events and just all around! Makes a great gifts for kids, too! Quality double insulation. Comes with a clear plastic lid with slide closure. Comes with a straight clear plastic straw. This is NOT the acrylic coated type, with our tumblers the print is baked into the surface of the tumbler for a smooth consistent surface that doesn't chip.