Review on 💡 Powerful Blue Heat Shrink Crimp Connectors for Secure Electrical Connections by Darren Neal

Heat shrink but the connectors were the only ones I found in this large lot. If you pay that price at an auto or hardware store, you'll get 20 to 30 connectors, which is five times more for the same money. Connectors work just as well, if not better, than big brands. Heats up easily and compresses very evenly.