Review on 400PCS Solder Connectors Haisstronica Waterproof by Mario Anderson

Excellent soldering for tiny wires. They are great for securing cables in vehicles that have broken down as most vehicle cables are getting smaller. I've found that you should tin the ends of the wires before squeezing them together to make the solder ring work better. One end is slightly larger than the other, but that seems to be the norm because they're all like that.