How to pick✔️ 탑로더 = toploader, 슬리브 = sleeve, 볼 체인 = ball chain (hangs on bags), 폴꾸 = polaroid/photocard decorating, 증명사진 = ID-photo size. Sleeve first, then toploader, and your cards scratch less. Clear ball-chain toploaders (4 sets) are ₩1,000, 100+ reviews, rated 4.8, handy for concerts. Buy a few and switch up the decor.