Home health chart auditBull 4 Socket,4 Switch,1.5 M Wire Extension Board with Circuit Breaker,White/Blue 434 ₹860.00 ₹ 860 . 00 Gongniu (Formerly Bull) Extension Board; 3 Socket, 3 Switch, 3 M Wire 755Cpa articling student salaryExtension cords come in many forms, as do the replacement plugs used to fix them. Make sure to choose a plug that is suited for the cord—a grounded three-prong plug if the cord has a ground wire, a two-prong polarized plug for simple household extension cords, etc.