SUITABLE FOR: Q2X, D2X, EXTIO ¥ STAINLESS STEEL RING (POLISHED) ¥ CONSISTS OF IN-CEILING MOUNT AND MOUNTING PARTS ¥ EASY MOUNTING FROM FRONT ¥ PROVIDES OPTIMUM PROTEXTION FOR THE CAMERA ¥ INCONSPICIOUS, AS THE VISIBLE PROFILE IS REDUCED TO A MINIMUM ¥ INSTALLATION DIMENSION (DIAMETER): 150 MM