Storage of Card Sleeves: Each card sleeve page has 4 pockets, double sided use, all 50 400 cards capacity, which can organize and your cards.High Quality Card Protectors: Made of clear polypropylene durable quality, non-toxic, no PVC, acid free, super sturdy, good to your trading cards from fading.Transparent and Durable Card Sleeves:High transparent and waterproof for you can keep trading cards visible and safe. Top loading for easy card insertion and keeping cards from falling, which is great for card storage and display.Universal Dimensions: Fits for all standard size cards,such as baseball cards,business cards,football cards, playing cards,game cards,etc.The pockets are top loading for easy card insertion. With 3 holes on the side, this card sleeves can be applied to most 3 ring binders, and it is easy to install and remove.Colour:Transparent colorMaterial:PolypropyleneSize:about 155 x 195mmSingle about 68 x 91mmPackage Contents:50 x 4-Pocket Trading Card Sleeves(double sided)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.