Set of 4. Perfect size for Yu-Gi-Oh! [Mini Size Side-Loading Type] This product is compatible with 59x86mm cards. Also, because it is a side-loading type, the insertion opening is wide, making it easier to insert cards. It is the perfect size for Yu-Gi-Oh!, Vanguard, Battle Spirits, Dragon Ball Heroes, Aikatsu!, etc. Please check your cards when purchasing. [Sleeves to Keep Cards Beautiful] Protects cards from the causes of deterioration: "corner peeling," "card bending," "scratches on the sides of the card," "dirt adhesion," and "water damage." Card sleeves are essential items to keep your cards in beautiful condition. [For the First Layer of Multi-Layer Sleeves] This product is an inner sleeve that fits the card size perfectly, so it can be used as the first layer. For more robust protection, layer it with character sleeves or over sleeves. By wearing them alternately, top and bottom, left and right, it is difficult for dust and dirt to enter, and you can keep your cards clean. Also, it is possible to prevent the card from popping out. [92% Transparency! Beautiful Soft Sleeves] This product boasts 92% transparency, the same transparency as high-transparency glass film. It has enough softness and transparency as a soft sleeve, so it can be used for both collection and play.