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This 5.5mm/2.1mm barrel Jack/plug (male-female) to screw terminal will come in very handy if you want a DC power connector that runs off a battery pack or wired power supply. There is a 5.5/2.1mm DC plug on one end, and a screw terminal block on the other. The terminals are labeled with positive/neg..

Set of five spools of 22 AWG wire. The wires have insulation in different colors: black, yellow, blue, green and red. The spools were placed in a box with holes through which the wires could be released.They will work well in the case of very precise work , such as sold..