Thank you for viewing. This is a RAYQUAL NF-NZ mount adapter. It is a mount adapter that allows you to attach Nikon F-mount lenses to Nikon Z-mount camera bodies. New, unused, and stored at home. I purchased it for a Z-mount camera, but I will not be using it, so I am offering it for sale. RAYQUAL NF-NZ Mount Adapter Made in Japan Thank you.