Thank you for viewing! I am selling this because I am replacing my camera. This is a mount adapter, an essential item for old lenses. The lens side is M42 mount, and the body side is Nikon Z mount. I used it with a Super Takumar 55mm f1.8 (late model). Lens cap and body cap are also included. Everything in the photos is included. This is a used item, so please refrain from purchasing if you are sensitive to such things.