White Mountain Puzzles 965 Shell Seekers -550 Piece Jigsaw Puzzle Shell Seekers is a beach jigsaw puzzle that brings back memories of warm sand through tiny toes, searching for the very best seaside treasures to display at home as reminders of a day at the beach. Artist Mary Thompson specializes in digital art. Every White Mountain Puzzle is proudly manufactured in America with a 100% customer satisfaction guarantee. All our puzzles contain unique interlocking pieces that are made of sturdy blue chipboard on recycled paper. 550 piece puzzles measure 18" x 24" - larger pieces for easy handling