20 FT 10 AWG Extension Cable (M/F)

I ordered this set of 10 AWG 20ft wire from Newpowa on E-bay before I knew I could order from they're web page. In the description here it shows the cables to be double insulated with a white inner housing, Mine has a black inner housing. The wire is a true tinned copper wire and seems to be made of good quality. The only real complaint I have with the wires is how stiff they are. It makes them hard to mount to my breakers. I used 9in sections to run from the array breaker to the charge controller and then another 9in section to the breaker leading to my battery bank. The wires don't want to stay seated into the charge controller no matter how tight I make the connection. I would recommend soldering the ends of the wire to get a better grip. I do believe if the housing was made of a more durable material, it would be easier to work with. Overall, this is a nice and heavy cable well worth the money and Highly Recommended. I will be buying more from Newpowa in the near future. Thank you for a great experience.