Paper Accents Super Value Pack Envelopes are perfect for greeting cards, invitations, letters, and more. Let someone know that they have received something special before it's even opened. These envelopes are acid-free, lignin-free, buffered and archival quality. Pointed Flap. A7. For use with 5 x 7 inch cards. Actual envelope size: 5 1/4 x 7 1/4 inch. White 250 pc.