Review on 120PCS Sopoby Heat Shrink Solder Connectors - Waterproof Wire Terminals For Automotive & Marine Electricals by Darin Marshall

It came well organized, easy to use it even has instructions inside the box for those learning to DIY. Do not pull while is hot, it will come right off. Saying that cause another review mention "it came right off after soldering”. Use common sense and let it cool off before trying to check it. Work the lighter around don’t keep it in one spot it will burn. So practice before you do the actual repair. This thing works. I gave it a 4 stars cause the case locking clip came broken. Not sure how since it had a plastic seal.