1. Easy operation: transparent sleeve provides precise inspection when strip and insert wires inside.
2. More effective way: an easy one step connection of wires insulated and sealed.
3. No slip wire contact: tubing reduces in size and solder will melt and flow through the stripped wires ensure strong holding your wire will never slip out of the connector.
4. Solder and Hot Melt Adhesive inside can be perfectly waterproof.
5. Waterproof connectors would prevent wires from corrosion.