These were one of my first great discoveries in high end audio. Swiss made with performance far ahead of their price. If you are unfamiliar with these, do a Google search and you will see that they have received high praise from owners and reviewers alike. They were recommended to me and I'm glad I tried them. They have served me well. I'm still using the Megaflux power cords in my system along with Dynaflux interconnects.
Here is a little information on their construction:
6 x 1.5 mm conductors (2xL, 2xN, 2xE in opposing helical array) incl. Film Shield
Triple-Sheilded for superlative interference rejection
Ultra-low noise floor, resonance damping topology
Low inductance and capacitance
Insulation loss factor smaller than of Teflon
Halogene-free, hardwearing and durable sleeve
These have some wear on the spades and sleeves but work perfectly. I think the 6/10 is a fair rating.
Let me know if you have any questions. Thanks for looking.