The Nest Mini Ballhead EI-A08 is designed to place various accessories on the hotshoe of your camera. The ball head has a 1/4" male thread at the top and is therefore quite universal. You can, for example, place a led lamp or a microphone on it. Using the wing nut, you can fix the EI-A08 in the right position. When it is not in the right position, you can easily adjust it.