Stored in a sleeve immediately after opening. Shipping will be via regular mail, with individual sleeves, waterproofing, and anti-folding measures. Anonymous tracking is possible depending on the number of cards. Bundle Discount: 5 cards: ¥60 per card 6 or more cards: ¥50 per card 30 or more cards: ¥10 per card Please apply for the discount when purchasing in bulk.