660PCS Heat Shrink Butt Connector, irhapsody 10-12 14-16 18-22AWG Electrical Weatherproof Wire Connectors, Insulated Crimp Waterproof Butt Splice Terminal;

A heat shrink butt connector is a terminal that is used to mate, connect, or terminate a single wire. Each heat shrink butt splice completely seals the terminal when heated, and is the most durable insulation for electrical connections. These connectors can be used in cars, boats and applications that utilize wire to transfer electrical current.
--- Accommodates wire sizes 10 to 22 AWG
--- Seamless barrel uses pre-insulated heat shrink tubing and ensures a secure fit while offering reliable performance
--- When crimped and shrunk, pre-insulated adhesive-lined polyolefin offers seal resistance to water and salt
--- Made of electrolytic copper for good conductivity and has tin plating for corrosion resistance

660PCS Heat Shrink Butt Connectors Kit
10-12AWG - 120PCS - YELLOW
14-16AWG - 270PCS - BLUE
18-22AWG - 270PCS - RED