Feature:1. Whether in ships, vehicles, homes or scientific projects, heat shrinkable solder and sealed connectors will ensure solid welding, increase current flow and waterproof connections.2. Melted solder ensures that the wire is firmly connected and prevents the wire from slipping out of the terminal.3. Highquality wire connectors for sealing, strain relief, cable inspection and insulation.4. Shrink ratio is 2:1, simple onestep wiring connection. Made of highquality plastic, durable and long service life.5. It is easier to choose the correct heat shrink connector, and the different colorcoded tubes with wire gauge markings, and can be easily identified.Specification:Item Type: Solder Seal Wire ConnectorMaterial: PlasticStandard: 1 KitWhite Connector (25PCS)Red Connector (35PCS)Blue Connector (30PCS)Yellow Connector (10PCS)Operating Temperature: -55 - 125 (-67 - 256)Minimum Shrinkage Temperature: 80(176)Minimum Temperature for Solder Melting: 138 (280.4)Shrinkage Ratio 2:1Red Connector Diameter: Approx. 2.7mm/0.10inBlue Connector Diameter: Approx. 4.5mm/0.18inWhite Connector Diameter: Approx. 1.7mm/0.07inYellow Connector Diameter: Approx. 6.0mm/0.24inRed Connector Cable Cross-Section: 0.5 - 1.0mmBlue Connector Cable Cross-Section: 1.5 - 2.5mmWhite Connector Cable Cross-Section: 0.25 - 0.34mmYellow Connector Cable Cross-Section: 4.0 - 6.0mmApplication: Whether you are working on your boat, vehicle, home or scientific project, our heat shrink solder and seal connectors will ensure solid soldering, increased current flow and weatherproof connections every time.Package List:1 x Solder Seal Wire Connector kit(100PCS)