jigsaw_puzzles: ISO9001 high quality 5years OEM/ODM Production:1000pcs/day CMYK Printing Product DescriptionPaper puzzle, game puzzle, paper craft, jigsaw puzzles 1) Material: A)Inner: Grey chipboard B)Outer: Art paper, coated paper, copperplate paper Other materials for your reference: White cardboard, silver or golden cardboard with white bottom, white paperboard with gray bottom, ivory ...