Surprise Party invitations for Birthday or any occasions, suitable for Kids and Adults. These surprise party invitations are suitable for any type of event like surprise birthday party, surprise retirement party, surprise going away party, and more.<br><br> Impress your guests for that special secret occasion with this set of surprise party invitations.<br><br>Printed in a Generous size 4 x 6 inches with the full-back to write your event details; Flat Two Sided Design with a 4x6 size printed and designed in the USA with Full Color Printing on Both Sides.