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.Alphabet of Thorn features the art of Kinkuko Craft. Enjoy Craft�s famous fantasy art.Ages 12 and UpBy Master Pieces