Many SoulCollagers like to use these. These crystal clear Card Sleeves fit perfectly over 5 x 8 inch mat board cards. You can keep your images for an unfinished card in the sleeve with the card even if they have not yet been glued down. The Sleeves have resealable, adhesive strips on a flap, allowing you to fold and seal over the opening to protect a finished card from wear, tear, and smudge marks. The SoulCollage® Card Sleeves are sold in this pack of 24 or a pack of 100. The size is 5 1/8 inches x 8 inches plus flap. The shipping weight/cost is negligible when added to an order with other items.