Comes with backdoor for the GoPro Hero 3 + and the Hero 3 Of course, totally overpriced, but the backdoor must be sealed underwater. Did not want to save 15 and then it ruin because the non-original part fails, that's why I bought this original part my GoPro. Works beautifully. If you just need to float, buy the fake from stores like XINTE. If you want an extra Backdoor (so one with and one without swimmers have), then you prefer to buy the original part here.
