Strain relief seems adequate, Nice covers, for when not in use. Wire seems reasonable. Total resistance for 12ft is 0.1 ohm which seems a little high for 16awg stranded copper wire, but it's probably from the aluminum connectors...I'm using it for a portable solar system for an FT-817 and a small 35 watt linear amplifier and it should never see more than 5-6 amps... Unless one has a flaw I haven't discovered yet they should last me years...