The ikan OTT-CM-LG OTTICA PTZ Camera Ceiling Mount is a two-piece assembly that supports PTZ cameras with a 1/4"-20 screw thread on the bottom. Attaching the camera and mount directly to the ceiling upside down will provide you with a sturdy long-term mounting solution. Note: The bottom piece is flat and ensures support for any sized camera. This version comes in light gray and works as a suitable accessory for the white OTTICA camera.