This metal camera accessory is a black underwater photographic lens holder base built in circular mount-shaped mount form. Its round profile, slotted cutouts, central threaded mounting area, and screw-hole connection points give it a practical layout for compatible underwater photography systems.As a threaded mounting base, it provides a reliable fastening point for lens-related equipment, while the circular-shaped mount structure keeps the profile compact and easy to work into an existing rig. For photographers setting equipment before a dive, this type of lens mount helps create a organized and dependable connection locationThe slotted and screw-connected design also makes the underwater photographic lens holder suitable for pairing with compatible floation and light arms. That means it can fit into a broader accessory setup, helping keep camera components arranged in a stable way during underwater photography.