Sleeves are an acid free, archival quality product that is designed to protect your valuable cards. These sleeves fit perfect inside a regular card sleeve doubling the protection on your card and making the combination virtually waterproof. The price of a pack of inner sleeves in negligible against the price of replacing expensive cards. - Size: 64mm x 89mm - 1" flap with resealable adhesive strip - Fits inside standard sleeve - Protect cards while shuffling and playing 100 sleeves per pack