at a BJ table a side bet is optional 2,3,4,5 in a row all wins. pays 2/1 5/1 12/1 16/1. The small streat button just marks which streak side game you are playing if any. If you get hot some good pay offs. I'm going by memory on odds, but they are close. The dealer only has 6 or 7 streak buttons, never could harvest any.