Korean Mailing Set of double-sided transparent seal backing refills Official, new, and unopened. [Contents] Hard type, 10 sheets (6 holes) [Size] A7 (80 x 125mm) Please peel off the protective film on both sides before use. Official, new, and unopened. Imported from overseas, so please refrain from purchasing if you are looking for a perfect item. There may be fine scratches on the protective film.