Jolabokaflod translates roughly to "Christmas book flood" in English. The tradition is to give or receive new books on Christmas Eve. It's not just about the giving though—it's also about the reading! Size: 3.5”x5” Card base is 110lb heavy white card stock. Front is green card stock with Jolabokaflod cut out in block letters to Showa book page. Inside: Blank Each card comes with a white envelope.