Limited edition can badges from the collaboration between "Sumikko Gurashi" and "Aqua World Oarai". This collaboration was a limited-edition merchandise sold as part of an event held at the Aqua World Oarai Aquarium. The can badges feature "Penguin?", "Shirokuma", and "Nisetsumuri", and include the text "SUMIKKOGURASHI Suizokukan Aqua World Oarai". These limited-edition goods were sold at the aquarium shop during the collaboration event, but I am selling them because I have duplicates. They will be shipped wrapped in air cap (bubble wrap). Brand new, unused.