Sleeve Kings Premium Cards Sleeves 57x57mmSleeve Kings Premium 57x57mm sleeves are extra thick (60 microns), clear polypropylene sleeves designed for small cards like those in Wyrmspan, offering 110 sleeves per pack (10% more than standard) with a "Tough As Nails" guarantee against splitting, providing superior protection and clarity at a budget friendly price point compared to thinner, less clear alternatives.