These are nice and sturdy. a couple things to note,
1 - it is not the same color as the fysetc cnc milled sherpa mini. mine came in black (not a big deal to me).
2 - if you are using the fysetc cnc milled sherpa mini, you will probably need to acquire an additional bearing, i couldn't get the one out of the old k-face, I happen to have a replacement set of "Sherpa CNC POM helical gear with nano coating by Fysetc" on hand to pull from.