Philmore 6-ft Heavy Duty (18AWG) DC Extension Cable Cord with Male to Female 2.5mm x 5.5mm Connectors; 48-1033 6-ft heavy duty (18AWG) cable Male 2.5mm x 5.5mm connector on one end; female 2.5mm x 5.5mm connector on other end Black heavy-duty 18 AWG zip cord