Double-sided cards made of sturdy cardboard. Comes with a matching paper envelope with rewettable gum on the flap (moisten to seal the envelope).Plain cards that can be used for all types of card decorating and card making techniques. Decorate with stickers, paper or card punches, tape, 3D motifs and much more.. Set of 50 cards and 50 envelopes (10 pieces in each color)