AWESOME PUZZLE.  THESE PIECES FIT VERY SNUGLY. YOU REALLY HAVE TO "SNAP" EACH ONE INTO PLACE.  UNSURE OF WHETHER ONE IS CORRECT? CHECK THE LETTERS ON THE BACK TO BE SURE.  I AM GOING TO PREPARE THIS ONE THE WAY I RECEIVED IT.  EACH "LETTER" SECTION WAS IN A SEPARATE ZIP LOCK BAG.  YOU HAVE THE CHOICE TO MIX THEM ALL TOGETHER OR ASSEMBLE BY SECTION.  ONE PIECE WAS BROKEN, SO WE REPAIRED IT.   I WILL PUT THAT ONE SEPARATELY SO YOU'LL KNOW TO BE GENTLE WITH IT.  THE PUZZLE IS PACKAGED VERY NICELY AND INCLUDES A VERY LARGE POSTER OF THE ARTWORK.  FINISHED PUZZLE MEASURES  APPROX. 19.7 x 29.5".  THE PIECES FEEL LIKE WOOD - WITH PAPER ON OUTSIDES, OR MAYBE A WOOD FILL.  LISTEN FOR THE CLICK:  TAKES A LITTLE BIT OF PRESSURE FOR EACH PIECE.