120Pcs Heat Shrink Wire Connectors Kit, Marine Grade Waterproof Electrical Butt Splice Connectors Terminals, Thickened Red Copper Wire Crimp Connectors for Automotive Wiring, Boat,Truck,cables,Speaker 120PCS Heat Shrink Butt Connectors, Marine Grade Waterproof Electrical Wire Connectors Kit-Thickened Red Copper Butt Splice Crimp Connectors for Automotive Wiring, Boat, Speaker, Truck, Stereo, Cables 【4 SIZES WIRE BUTT CONNECTORS KIT】:120 piece set of heat shrink crimp connectors in four different AWG sizes: 64PCS red (AWG 22–16), 36PCS blue (AWG 16–14), 10PCS yellow (AWG 12–10),You don't need to purchase different AWG separately. This will cover just about any application for A/C or D/C. Our 4-in-1 electrical connectors kit meets your diverse usage needs and save yout money 【HIGH-QUALITY RED COPPER CORE】: The organizer box is great and the connectors are high quality. They will easily shrink with a cigarette lighter. You can also use an electric heat gun.Our electrical crimp connectors feature premium thick-gauge red copper cores. Made from robust materials, these professional-grade eat shrink butt connectors are perfectly compatible with heat guns and provides 【WATERPROOF WIRE CONNECTORS】: Marine wire connectors has unique dual-walled design. High quality 3:1 Shrink Ratio tubing has a heat-activated sealant lining to provide a 360 degree secure seal. They work particularly well for waterproofing accessories. It's flame-retardant and can be used underground.Once they are heated and shrink, they’re definitely watertight and could be used in marine applications. 【WIDE APPLICATION】: A must have for every garage.Must have for any electrician or mobile mechanic.Great to have around the shop for wiring repairs or projects. Electrical butt connectors are waterproof, stable, and corrosion resistant Using for your sailboat rewire and used as automotive electrical connectors, perfect for used in the automotive, vehicle,marine, home or scientific project and electronic industries 【EASY-TO-CRIMP CONNECTORS】:These wire splice connectors effectively seal wire connections, working consistently and easy to make solid connections, with the tubing shrinking tightly around wires. Your wire will never slip out of these heat shrink wire connectors