These eco-sleeves measure 4 5/8" x 5 3/4" and fit our cards that come un-sleeved. Find out if a card is un-sleeved in the "About this product" section under the photo of the product. A rule of thumb is, if the card doesn't have an attachment ie. button, wheel, pencil, pocket etc... it comes un-sleeved. If needed, add the quantity you need for all the un-sleeved cards in your order.