Designed specifically for the XPRO3, our thumb grip looks as if it is part of the camera, it feels great and makes shooting with one hand a breeze, allowing full access to all the controls.  The thumb grip does not cover any of the controls, it sits against the camera body and the buttons are directly under the grip. The Black is anodised aluminium. The Brass is solid Brass  This thumbgrip does not fit the XPRO2 or XPRO1