Full of disappointment, I realized that the three display Backdoors do not fit on the housing of GoPro3 + because they were all three at large. My internet research showed that many buyers had the same problem and therefore the Backpack display ordered Kit for GoPro3 +, which can be bought for 9.99 at Amazon and should match the GoPro3 + (what extent is true).
But when I wanted to dispose of and dismantle the packaging, I have found that have been included in addition to the three major display backdoors for GoPro2 and 3 also three other display backdoors for GoPro3 +. Tucked away in a black cardboard back of the packaging. I do not know how many buyers who complain here in the recessions over the absence of backdoors that is not noticed and the article has been sent back.
If so, the three Backdoors be too large, look just in the black back of the packaging)