This is a genuine body cap for CONTAX cameras. Compatible models: Primarily for the CONTAX N system (N1, NX, N Digital), model number "NK-B". Purpose: A protective cap to prevent dust and debris from entering the camera body when the lens is removed. Features: Genuine product that came with Japanese-made cameras by Kyocera, utilizing German Zeiss technology. There are scratches as shown in the pictures. Please purchase if you are not concerned about them!