This is a mount adapter for attaching Nikon F(G) mount lenses to Sony E-mount cameras. I am selling it because I no longer need it, as I have sold my E-mount camera. Please purchase only if you understand that this is a used item. K&F CONCEPT NIK(G) - NEX mount adapter, made of metal, with a black and silver design. - Brand: K&F CONCEPT - Model: NIK(G) - NEX - Type: Mount Adapter - Material: Metal - Colors: Black/Silver Thank you for looking.