1)" surface box " with M4 nut 2)Sizes: 3x6 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) material : pvc4) Uses : electrical or construction5)Payment terms: 30% T/T, balance before shipment6)Delivery day: within 15-20days after receiving depoist7)Port : ...