The back is blue. This is the chocolate version. It's from about 40 years ago, so there is aging due to the passage of time. Please confirm the condition in the images before purchasing. Please refrain from purchasing if you are overly concerned about the condition. When shipping, it will be sandwiched between thick paper etc. to prevent bending. *No price reduction. Due to the risk of product substitution, no claims and no returns are accepted. I also have some old Bikkuriman stickers for sale, so please take a look if you'd like. #Bikkuriman #BikkurimanSticker #BikkurimanChocolate