Paper Accents Envelopes are acid free, lignin free, buffered and archival quality. These envelopes can be sent through the mail and have adhesive strips that are moistened to seal. Decorate the envelope to match a card or invitations. Use in memory albums or scrapbooks as a memory pocket. Can be used with rubber stamping, paper crafting, and more. For use with A2 cards or up to 4.25" x 5.5". White 25pc