This is an extension handle part to convert a Nauticam single arm to a dual-arm setup. It is almost new, and the items in the photos are included. A base tray is also included as a bonus with the extension arm. Please consider this item if you understand that it is a used product and are familiar with its use. NA Multi-Tray System Extension This is an additional part to convert a single grip to a double grip. *Please remove the O-ring (orange) for preventing the fixing screw from falling out before use. #40180 ¥7,800 (tax included ¥8,580) NA Direct Base This is a base adapter that can be attached to Nauticam housings and grip tops. Two M5 screws are included. *Please remove the O-ring (orange) for preventing the fixing screw from falling out before use.