... 3)Color:white/black 4)easy to equiped, long life for use 5) good apperance 1) name:switch box, 2 gang box , 1 gang ... box,flushing box,surface box2) sizes: 3"x3",3"x6"box, 20mm/25mm knockouts3 ... of construction ,electrical equipment , components12)PVC 2 gang box are used as surface mounting ,control box , switch box or general service box