Seawhite Krystal Seal Sleeves are clear unpunched archival sleeves which are resealable to keep your artwork or photographs clean and protected from dust. In packs of 25, they are acid-free, so they are a safe way to store your work, and fit perfectly into Seawhite's elegant Archival Boxes. Seawhite Krystal Seal Sleeves are also available in A2, A3 and A4. Please note that each size of sleeves is slightly bigger than A2, A3 and A4 in order to accomodate different widths of paper easily.