all kinds of wall box ,flushing box , sizes: 3"x3" ,3"x6"20mm/ ... swithc box, 2 gang box , 1 gang box,flushing box,wall box2) sizes: 3"x3",3"x6"box, 20mm/25mm ... , junction box or general service box7)switch box protects wire and cable from easy damage8)Installation during the process of ... , 1 gang box with no smell attracting to rent ,will no suffer from biotic attack10) Protects wire and cable from easy ...