1Product Material: The exterior of this card collection is made of durable and waterproof PU material. The card sleeve is made of transparent PP, which is durable, acid free, waterproof, ultra strong, and not easy to break. It is beneficial to protect your card from fading and stains. 2The Perfect Gift for Card Collectors: The 12 pocket card binder is not only perfect for PKM transaction cards, but also for other game cards, including PM cards, football cards, baseball cards, and more. 3Good Function: 12 pocket trading card binder can not only protect and organize cards, but also be waterproof, scratch proof, dust proof, and loss proof. It is also the best gift for children, relatives, friends, and husbands. 4Perfect Size for Multiple Standard Cards: Our card holder is compatible with cards up to 97x70mm, such as transaction cards, basketball game cards, and baseball sports cards. 5Card Collection Book Specification: Interchangeable card holder with 12 pockets on each side, 40 sides in total, capable of accommodating 480 cards.