This 20 piece A6 card and envelope pack in Pear, is part of the Surfacez Collection from Sizzix. This pack includes 10 cards and 10 envelopes. These cards have a smooth finish which is perfect for stamping. The envelopes coordinate with the cards. The cards are both acid and lignin free. The paper used in the cards weighs 300 gsm, which is a sturdy, heavyweight cardstock that is perfect for stamping and adding embellishments and die cuts. The envelopes are made from 120 gsm paper which is a lightweight but sturdy paper. These cards and envelopes measure 4.12" x 5.87". These cards and envelopes coordinate with the entire Muted Collection of products from Sizzix.