WaterproofSolderRingHeat Shrinkable Middle Tube Solder Terminal-Welded Connector Features: Practical and safe to use ----- The transparent sleeve enables more precise stripping and insertion of wires. After heating the adhesive fills gaps in the connection ensures a tight connection and prevents wires from slipping out of the connector. The isolated design saves you from worrying about electrical leakage 5 colors:The package contains red waterproof cable connectors blue cable connectors yellow cable connectors white cable connectors black cable connectors different colors provide convenience to identify No lighter! Temperature at which the soldering ring begins to melt: 118 ° C. No soldering! Product Description: Wide Applications: Our solder wire connectors are ideal for your boat vehicle airplane home and even scientific projects that ensure solid soldering The shrinkage ratio is 3: 1 Temperature starting to shrink: 80 ° C. Temperature at which the soldering ring begins to melt: 118 ° C. Temperature at which the solder ring melts completely: 160 ° C. Note: This means the temperature of the surface of the connector not the temperature the heat G un should set. 1 box of solder terminals Note Insert two ends of the cable into the connectors and position them Move the connector to the center of the conductor and heat it With a hot G un. No crimping necessary! No soldering! No crimping! No lighter!