This is a set of 3. Perfect size for Yu-Gi-Oh! cards. 【Mini Size Side-Loading Type】 This product is compatible with 59x86mm cards. Also, the side-loading type has a wide insertion opening, 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 before purchasing. 【Sleeves to Keep Your Cards Clean】 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 a clean condition. 【For the First Layer of Multi-Layer Sleeving】 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 layering them alternately, top to bottom and left to right, it prevents dust and dirt from entering, and keeps the cards clean. It also prevents the cards 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.