TYPES:400 Slots Description: ??Premium Material??: The card holder is made of waterproof PU leather, which has good impact resistance, dust resistance, soft touch and effectively protects your cards from fading and stains. Clear plastic sleeves make it easy to display and organize cards. ??Practical design??: the loose leaf ring design makes it fillable/expandable, you can add or remove as many inner pages as you like; the zipper design protects the card from falling off and offers multiple protection options for the card. .