The300pcs solder seal wire connectors includes Yellow 30pcs,Blue 100pcs,Red 100pcs,White 70pcs.The Waterproof solder wire connectors is made of high-quality hot melt adhesive material that is heated to melt the rich adhesives and wrap the solder wire connectors.Good water and moisture resistance, so that the wire can be used safely in a humid environment These solder seal wire connectors are composed of high-purity and thick solder rings,and the molten solder flows and adheres completely after heating wire for connection Includes Large gauge wire connection applications.waterproof solder wire connectors are marked with wire gauges for easy identification.Just measure the wiring,and by checking the wire gauge markings on the polyolefin tubing,you can quickly select the appropriate connector.These solder seal wire connectors are composed of high-purity and thick solder rings,and the molten solder flows and adheres completely after heating wire for connection Includes Large gauge wire connection applications.