Asmodee North America Gamegenic Matte Double Sleeves are an essential requirement to protect your valuable gaming cards. To increase this protection most players add a smaller, inner sleeve (sleeve-within-sleeve) to seal their valuable cards from all sides. This contains both inner sleeves and regular sleeves to provide a maximum of protection for up to 100 cards.The matte prime sleeves provides a matte front that blocks annoying reflections, to ensure that the card is visible from all sides avoiding symptoms of eye fatigue during gameplay. The back side of the black, regular sleeves is 100 percent opaque and provides a great shuffle feel. Exact fit for standard sized gaming cards: 64 x 89 mm.