Master Pieces combines the highest quality in jigsaw puzzle production with the finest of artwork to produce true masterpieces. Each puzzle is constructed of thick puzzle board made of recycled materials. The puzzle pieces are random shaped and fully interlocking. As a finishing touch, the puzzles are aqueous coated to provide a protective, high gloss finish.Check out Marilyn's moves. This puzzle in motion will fascinate you when completed. Thousands of prisms creates a finished picture that changes and moves when viewed from different angles.Ages 10 and UpBy Master Pieces