This is a set of two Lotte Duty Free coupons featuring TWICE's Sana as the model. They were obtained directly at a store in Korea in 2019. They are made of sturdy paper and are durable. It's a set of two of the same item, perfect for preservation. Please note that the coupons themselves are old and cannot be used. There is a small mark in one place, but they are in good condition, having only been opened for photography and inspection.