... 6", 8", 10",CASE MATERIAL:Steel case, steel black case, steel chrome plated case, steel gold plated case,brass polished case, all this can take ... brass bezel, steelroll ring (or bayonet threaded ring), type: snap on, roll ringTUBE&SOCKET: steel with nickel plated, phosphor ... brass bezel, steelroll ring (or bayonet threaded ring), type: snap on, roll ringTUBE&SOCKET: steel with nickel plated, phosphor ...