text: It fits the YI 4k perfectly, placed a lanyard on the cover and it has a couple of hole to tie it to. The problem is the YI camera keeps locking up that you need to open the camera to remove the battery. One star off is because the black one attracts lint that makes it took like a junk camera. The while is translucent and it would have been nice if it is white. Overall, I decided to just keep the camera naked and just buy those tripod screw eye to hook a neck lanyard to protect the camera.