Paper Accents Card & Envelope Sets are ready to personalize. Use stickers, rubber stamps, brads, eyelets, buttons, punches, and more. They are acid-free, lignin-free, buffered, and archival quality. Cardmakers Choice 4.25"x 5.5" 80lb White 25pc- Cards are scored and ready to fold to 4.25"x 5.5". Contains 25 each of 80lb heavyweight cardstock cards and white 80lb text weight A2 envelopes.