Kuject 300 Pcs. Heat Shrink Butt Connectors 26-24 Awg, Insulated Waterproof Butt Time Saver Safety Visible - Solderless, crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way. Made of transparent and high quality materials, these solder seal wire connectors provide users a clear perspective for safety inspection. Fit for Narrow Spaces and Particular Wire- In the confined area, just control the temperature via heat gun, and then the heat shrink solder connectors will be flexibly bent after connection without needing any crimping or soldering. The package includes 300PCS White marine wire connectors with A.W.G 22-18, specially designed for the wire specification you want. Better Weatherproof and Seal Performance - There are two hot melt waterproof adhesive rings with enough solder in each solder wire connectors which can support a long lasting connection in a harsh environment and prevent from moisture and abrasion. High Temperature Proof- Use exclusive material in the butt connector to avoid shrink tubing melting before solder ring. IATF16949:2016 Listed: The Kuject solder seal connectors meet the newest standard of International Automotive Task Force, which is the most standardized way for you to repair or modify your car.