Give your Sudoku-obsessed customers and supporters a chance to get their puzzle on with these 3.25" x 4.25" colorful matchbook-style game books. Each booklet features nine pages of challenging puzzles that are printed on eco-friendly post-consumer recycled paper. A great idea for businesses and brands that like to think green. Make this a truly interactive experience by posting the game solutions on your website and measuring program results. Add your school, sports team, organizational or company logo or message to customize.