This is a socket that was used for a system light. The socket part is made of ceramic. Both the cable and the socket part are clean, with no noticeable dirt. Length: Approximately 50cm For E26 type bulbs, for hanging ceiling fixtures 6A 250V I am also selling another one of the same type, and one with the same length but with a black plastic socket. If you purchase two or three together, I will offer a discount, so please contact me before purchasing. *Please refrain from purchasing if you are sensitive to scratches or dirt.