I ordered a couple of stylus replacements for the Signet HiTec H-12 cartridge, which is nearly 40 years old, so there are only aftermarket replacements. The replacement from LP Tunes was much more difficult to install and the fit to the cartridge was quite tight and not as easy as for the original Signet stylus. In fact, a small plastic tab at the rear of the stylus replacement cracked and came off, so I used the other one. Once in place, the stylus was excellent and gave good sound quality. Aside from the tight fit, I was pleased with the new stylus.