A Nikon metal viewfinder eyepiece, silver in color, with a lens ring. This is a part that fits into the eyepiece of Nikon Nikomat series cameras for attaching flashes and strobes. There are scratches and minor wear from use, but the condition of the felt light seal on the camera contact surface is good. There is no visible mold on the eyepiece lens, but there is some deterioration. Thank you for looking.