All user reviews for the Cleartone Strings Electric Nickel Plated

I bought these strings because oddly Elixir in 9-46 did not take long enough compared to other rods of the same Elixir

I tested two days since the strings in CLEARTONE 9-46

it is marked that they have a stronger than the others
they last longer
and they do not fray over time as the Elixir (especially on the side of the pick)

result in 2 days, the rope becomes black in places where I play most

there is nothing to be disappointed
it never happened to me even with 9-42 and Elixir

on the other hand, I find a softer say as if it were non-sheathed, but if the color does not last, what is it?