This stuff is definitely different than what comes in the k60. As far as if it is the original formula? It is not but it is really close. This stuff is bomb af though so dont sleep on it, also i bought one just to fill up my markers because using this mop would be a waste of ink.
These inks are good. The ink is most definitely acetone based and the silver is a different formula than the original krink silver from back in the day. They are good though so pick one up.
A Classic not much too say about it, but to buy them I got it to compare to the hobo marker and I gotta say that HOBO is very nice and nice on the wallet too. Highly recommend.
[5 of 5 Stars!]
