Review on Nozzles for Printer Extruder Makerbot Creality: Additive Manufacturing Products by Richard Marriott

Always buy nozzles from reliable sources. I bought them because they are so cheap and seem to have good reviews. I was new to 3D printing and randomly ran into problems. I replaced my extruder, my motors, added automatic platform leveling, replaced ALL HEAT, I even changed the nozzle a few times, after that everything seemed better, but not for long! Having learned more and more and now tried injectors from more reputable sources I can say with confidence that these injectors are complete crap, I threw what I had left of them in the trash. They're so cheap because you have to replace them after 10 hours of printing! Do yourself a favor and buy some baits from a reputable source (I wouldn't recommend Revain at all, they tend to be cheap baits for the most part). TH3D or Fargo 3D printers have some great nozzles, but they don't come cheap. You get what you pay for.