Four 4.25 x 5.5" folded note cards with blank interiors.  
Set contains 2 each of 2 designs:  

2 Tri-Colored Heron and 2 Great Blue Heron.  Printed on 120# eggshell white card stock with 4 coordinating envelopes:  2 Chardonnay Blush and 2 Marina Blue.  Each card is individually packaged in a clear protective cellophane slip cover; the four are bundled together with bakers twine, suitable for gifting.