Trading cards and postcards will generally be packaged with cardboard reinforcement on both sides. Sleeves and waterproof measures will also be taken. Since I also sell on other sites, items may suddenly become out of stock. Please comment if you would like a hard case. Discounts are available for bulk purchases of trading cards. Price negotiations are possible only if you are ready to buy immediately, but I may not be able to meet your expectations for items with many likes or that have just been listed. #OnigiriSkz