Double secure storage: The card holder has a compartment design on the inner pages and an elastic band on the outer shell design that is freely adjustable. The inner pages hold the cards in place better, while the outer elastic band prevents them from falling and moving. Advanced materials: The Rio Tinto Game Collector's Book is made of high quality PP material, which is non-toxic and harmless to humans. Both the inner and outer shells are waterproof materials, and the hard shell can better protect your work and game cards and protect your cards from scratches. Advantages of large capacity: The card holder better meets your card needs with 360 individual pockets, 20 pages and a double-layer design for a total of 18 cards in the front and back. It is your personal assistant for organising your belongings. Outstanding performance: the card holder can be opened left and right. The transparent design allows you to find the card that appeals to you most at a glance. The black colour is elegant and shows class and style. Collecting and organising the cards scattered around the room is no longer a chore. PERFECT FIT: The card holder is perfect for most cards on the market with a single compartment of 9.7*6.8mm, such as: game cards, dragon field cards, ID cards, trading cards, information cards, shopping cards, etc.