This is a really good trem ! For $30 it a bargan, it was easy to install, guitar has improved tone, sustain. With a bone nut and locking tuners it stays in tune. The tone block is nice and beefy, although its not steel, I think its zink, but its heavy and really improved the tone. Install was really easy for me because the pivot bushings were the same size as my old ones. The saddles are steel , lots of mass for sustain. The trem action is super smooth, no binding, clicks or pops. What else can I say, its a Wilkinson, they make great stuff!Updatei played live,with this guitar. This trem took this guitar from a good axe to a great one ! The sustain and tone it added is amzing. Tuning stablility was great! My other guitar played couldnt belive the difference it made. If you have a asian or Mexician strat, and dont want to spend a lot of money, you need this trem !