1)" wall box " with M4 nut 2)Sizes: 86x86x45mm 3)Color:white/black ... use 5) good apperenc 1) name:switch box, 2 gang box , 1 gang box,flushing box,surface box,inner box2) sizes: 3"x3",3"x6 ... surface mounting ,control box , switch box or general service box sizes: 86x86x45 surface box ,pvc material, 100pcs/outer packing , one gand box sizes: 86x86x33cm cable ...