This is the Nikon Eyepiece Magnifier DG-2. It's an accessory that magnifies the viewfinder image of a camera, making it easier to focus. I purchased this as a spare. It is unused, but please consider that it has been stored at home. The original box was slightly torn when opened. I opened it for the purpose of taking photos. [Brand] Nikon [Model Number] DG-2 [Purpose] Camera Eyepiece [Condition] Unused Thank you very much for looking. Thank you. Magnifier DG-2 Brand: Nikon Viewfinder/Eyecup Type: Magnifier