This beautiful Ballet Slipper color is sure to be a hit for your spring and summer card making needs. This pack of A6 cards from Sizzix contains 10 cards and 10 envelopes. They are both acid and lignin free. These cards are compatible with laser and ink jet printers, but they also have a smooth finish and are suitable for stamping. They are lignin and acid free. The cards measure 4 1/8" x 5 7/8".