Wire Connectors Kit meets the latest International Automotive Task Force standard, which is the most standardized and safest way for you to repair or modify your car. All-in-one welding and sealing process. No need for crimping tools or welding machines. Save time and dirt. Double Wall Design - Polyolefin outer tube provides insulation and improves pull-out force, hot melt adhesive, and inner solder ensure wires are firmly connected and prevent wires from slipping out of the terminal. Solder Connectors will make your cable connection waterproof in seconds. Use exclusive material in the cylinder head connectors to prevent the tube from melting before the solder ring. There are two waterproof adhesive rings on each butt plug, which help it to better hold in moisture. It also applies protection against mechanical damage and prevents wire corrosion. Our Connectors Kit comes inside a storage box, easy to store and carry. The color-coded tube makes it easy to identify the correct connector size for each application. It can be bent after connection and no need to crimp or solder in the confined area, just control the temperature through a heat gun. KEY FEATURES: All-in-one welding and sealing process No need for crimping tools or welding machines Our Connectors Kit comes inside a storage box, easy to store and carry It also applies protection against mechanical damage and prevents wire corrosion There are two waterproof adhesive rings on each butt plug, which help it to better hold in moisture SPECIFICATIONS: Quantity:10/20/30/50PCS Color: White/Red/Blue/Yellow Material: Tinned Copper White Connectors: AWG 26-24 Fit Wire 0.25-0.34mm² Red Connectors: AWG 22-18 Fit Wire 0.5-1mm² Blue Connectors: AWG 16-14 Fit Wire 1.5-2.5mm² Yellow Connectors: AWG 12-10Fit Wire 4-6mm² PACKAGE INCLUDES: 1SET * Solder Wire Connector Kit