This dc power plug is made of high quality PVC flame retardant plastic with good electrical conductivity and corrosion resistance;
Dimension: External diameter is 5.5 mm, internal diameter is 2.1 mm; Suitable for small electronic projects and closed circuit TV applications. Perfect for replacing worn out plugs on power supply ends or making a cable to a desired length or replacing a broken connector.; Easy to handle, you really don't have to be a professional to do this. Just insert the cables in the holes, twist and lock in place, and only then solder; Package include 20PCS x DC Power Supply Female Panel Mount Connector 5.5 x 2.1 mm 20Pack 5.5 x 2.1 mm DC Male Plug Power Supply Ends Solder Type DIY DC Barrel Connector