The Blue Ray Tray Extension, wheninstalled on the universalBlue Ray Single Tray,enables mounting a second arm on the tray, thereby integrating additional accessories in the system, such as external flashes, lights and more. This extension plate includesone T1arm connector andis easy to assemble. The Fantasea Blue Ray Tray allows integrating different components in an underwater photo system, including the camera housing, arms, strobes, lights, lens holders and more. Made from anodized aluminum, this sturdy tray was designed for optimal functionality and ease of operation. The Fantasea Blue Ray Tray is compatible with almost all compact digital housings, includingFantasea, Canon, Fujifilm,Sony, Olympus, Panasonic, Ikelite, Sea&Sea and more.