Paris History Puzzle is a 500 piece jigsaw puzzle with a difference and is part of University Games’ unique Past to Present Scratch Off collection.The Scratch Off puzzle is the greatest innovation to the jigsaw puzzle in over a decade First you assemble the puzzle. When the puzzle showing Paris of the past is complete, use the Scratch Off tool to begin scratching to see a new coloured image appear before your eyes The image underneath shows how the city of Paris and the surrounding landscape has changed over the years. You can experience time changing before your eyes.When complete, you can turn over the puzzle to retain the original puzzle art you assembled.This Scratch Puzzle comes with a scratch tool, brush and pan. The Scratch-Off session is hours of activity.Completed puzzle size: 60.9 x 45.72cmSuitable for age 8 years +Contents: 500 piece double-sided jigsaw puzzle, scratching tool, brush and pan