It says oxygen free on the package but when I got it my cables are all copper clad aluminum lower quality and not what I paid for I basically paid about $30 more for something that shouldnt have been so expensive seeing as I was given the basic product. I will not be ordering from this company again Im just going to stick with skar audio. At least with them I know that Ill be getting quality products and I will get the correct order that I paid for.

Perfect for the money spent

Really happy with the quality price and turn out!

Great quality. I was amazes at how good this product is. Only thing bad was the tiny screws. Everything else was grade A too notch quality. Wire is bigger than my 1/0 Stinger wire.

Great wire and I had more than enough to do the big 3! It significantly helped my electrical output to my amp!

very flexible. very thick. 100% copper BUY IT

Flexible and works great!

Nice thick ofc. Had plenty of wire. Holes were a bit small, had to drill them out a bit. No big deal. My 4 stars is for the cheap zip ties they included. Every one of them broke easily. Order zip ties if your ordering this kit. Overall, happy with the purchase. Stabilizing my voltage nicely