Bluetooth Remote Trigger Mounting Bracket

Mounting bracket for a [Xiaomi remote camera trigger*](http://www.banggood.com/Original-Bluetooth-Remote-Controller-for-Xiaomi-Yi-Sports-Camera-p-982397.html?p=EY011634303112016018). This was made for a friend who is using it with a selfie stick and iphone. I don't have a picture or model of selfie stick it is compatible with, but it's compatible with a 20mm round extrusion with anti-twist grooves. My old slik tripod uses the same tubes so it may be a standard extrusion profile. (shown in the