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. 4.25"x 5.5" Smooth Neutral Assorted 40pc- Includes: 40 folded blank cardstock cards and 40 white envelopes; 4 each in a rainbow of 10 colors. Each card has a smooth surface.