No more crimping. All-in-one soldering and sealing make it easier and more cost-efficient. Our Waterproof solder wire connector kit is mentioned. This self-soldering wire connector is made of eco-friendly heat-shrinkable tubing, lead-free high-purity solder ring, and waterproof hot melt adhesive to ensure the wiring connections are more simple and time-saving. Solder stick wire connectors require only a heat gun to control the temperature and connect the product. Even in a confined space, soldered connections do not need iron. During heat shrinkage, solder seal wire connectors can tightly wrap wires, ensuring smooth conduction of electricity, keeping the wires waterproof, anti-corrosion, and more abrasion resistance. These solder stick wire connectors are ideal for motorcycle stereos, marine, outdoor, switches, etc. Order now!