First of all, you might want to call customer service. I don't think your green band should have snapped on you. To answer your question, I have switched to the orange band after the green band became too easy to use. I am in my 11th week and the orange band is tougher. The black one is harder than the orange but it comes with your inital package. I ordered the deluxe package that came with the bootie band and dvd along with 2 other bands and according to barry, after the green band comes the orange band. I can't remember if the black band is third to use or last. There are 4 bands total. I will admit however, that I have to switch back to the green band when I do the military press. It's just too tough and with the green band I can barely get through it. All the other exercises, even the mission advanced, I use the orange. See if customer service will replace the green band for you and you may also want to see about ordering the other 2 colored bands so when you are ready to switch, you can switch to the orange and save the black for later on when you're stronger. Good luck!