American Crafts-Mini Cards & Envelopes. Get big creativity with this mini-card set! This package contains ten 3x3 inch cards and ten 3x3 inch envelopes. Comes in a variety of colors. Each sold separately. WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm- do not mouth or chew. Archival quality. Acid free. Imported.