Review on 💧 MUYI Waterproof Electrical Connector Terminals: Ensure Maximum Protection for Your Electrical Connections by Danny Poulin

Relatively poor quality plastic. The main issue is the locking tab that holds the two pieces together. The rubber seal is so tight that it's difficult to take them apart, which isn't necessarily a bad thing if you want them to be waterproof. However, as soon as you lift the locking tab, it breaks. The rubber gasket is relatively firm but I taped it in place just in case, not a very professional looking setup. Some of the metal pins broke but as I ordered more I had enough to finish the job. I wouldn't recommend them if you ever plan on taking them apart or if they are visible like the engine bay. Make sure you follow the instructions that came with it. One side uses female pins and the other side uses male pins.