Color: Dark Blue Designed specifically for horizontal cards, offering convenience. This card holder is specifically designed for storing horizontal cards. It accommodates card sizes of 63mm (vertical) x 88mm (horizontal), allowing you to organize a wide range of collections, including castle cards, dam cards, K-POP cards, artist cards, talent cards, and various trading cards. Horizontal cards, which are often difficult to store in standard vertical holders, can be stored smoothly with this dedicated design. A4 compatible, making it compact and easy to carry ◎ It's also useful for collecting activities on the go, at events, and tourist destinations. Large capacity storage and smooth insertion/removal. It comes with 13 refill pages, each holding 8 cards, for a total capacity of 104 cards. The size is designed to accommodate cards even when they are in sleeves or protective film. The pages are easy to turn, making it comfortable to view and organize your cards. It has storage capacity for collectors of various genres. "Hardcover to protect cards and Hook closure The cover is a sturdy, thick hardcover that protects your precious cards from impact and bending. The opening and closing section uses a hook, so the contents won't scatter even when placed in a bag or backpack, making it easy to carry ◎ It's designed to keep your collection in good condition while securely storing it. Easy-to-carry size for events and "oshi-katsu" (supporting your favorite idol/character). With its compact external dimensions despite being A4 compatible, it's easy to carry, making it ideal for collection activities on the go ◎ You can organize dam cards and castle cards you get at tourist destinations, and K-POP trading cards you receive at concerts and event venues on the spot, preventing them from getting dirty or bent. It fits easily in bags and backpacks, making "oshi-katsu" and collecting activities more enjoyable. It combines ease of organization with visual appeal. The simple, timeless design looks neat even when placed on a shelf or desk.