Nikon TRA-2 Tripod Adapter for Action, Action Extreme, Aculon and Marine Series BinocularsThe Nikon TRA 2 Tripod Adapter provides superior stability for a range of Nikon Action, Aculon, and Marine series binoculars, ensuring precise and steady viewing. Constructed from durable metal, it guarantees a secure connection to any standard tripod with a 1 4 inch 20 threaded screw. This versatile accessory facilitates hands free observation, significantly reducing shake and eye strain during extended use. It is also compatible with most Porro