The GoPro Hero 3 Replacement Housing is an empty protective case for holding your Hero 3 camera. The same as the housing the Hero 3 comes in, this Replacement housing is also delivers waterproof protection for your camera. When you get a GoPro camera, the housing that it in can take an extreme amount of abuse. But it's not invincible. If the day comes where the housing starts to fail, but the camera that its protecting is still good, then pick up the GoPro Hero 3 Replacement Housing and get back out there capturing your extreme adventures!