Make-Your-Own Puzzles! Creates 24 4 inch by 4 inch cardboard puzzles with nine interlocking pieces per puzzle. Great for classrooms also, since each child can decorate a puzzle piece, and then, afterwards, link them together to make a whopping sized picture! Mount of a bulletin board, or directly to the wall with your own adhesive. Ink, paint, etc. not included. What a wonderful way to *link* children together! Card Stock cardboard. Information on how to place your order by fax or by telephone. Product Number: OT576072