China Post China Stamps Giant Panda Panda 6-stamp set. Please refrain from purchasing if you are sensitive to the condition, as this item has been stored at home for a long time. The adhesive on the back may have slightly discolored due to aging. The stamp surfaces are in good condition. I am not an expert, so I do not know the details. There are no noticeable stains, but the item will be delivered as is, so please check the images before purchasing. I am not responsible for any damage during shipping. Returns are not accepted. Thank you for your understanding and purchase.