... Picture of Goods:1, FC/PC SM Simplex, ceramic sleeve, metal housing, red color dust cap (1 piece type ... ) 2, FC/PC SM Simplex, ceramic sleeve, metal housing, red color dust cap (2 piece type) ... 3, FC/PC SM Simplex, ceramic sleeve, metal housing, red color dust cap (Big D type) ... 4, FC/PC SM Simplex, ceramic sleeve, metal housing, red color dust cap (Small D type) ...