To connect two wires using a snap lock, simply insert the existing wire and tap wire into the snap lock and squeeze the special snap lock blade with a pair of pliers. Then, fold the latching mechanism over. Just like that a connection is made with no need to worry about hot soldering irons, wire strippers or sharp wires poking out. With the snap lock's safety lock latch, you can be confident that wires will stay properly connected through all kinds of weather. CURT snap locks, also known as scotch locks or quick-splice connectors, come in a variety of sizes and feature a high-impact plastic housing with an aluminum blade. The snap locks in this package of 100 are designed to fit 18-14 gauge wire. They come with a special sealant gel that surrounds the wires and offers the best possible protection against moisture and corrosion., SNAP LOCK TAP CONNECTORS WITH GEL SEALANT (18-14 WIRE GAUGE, 100-PACK) #59956 Instantly splices two wires together using only a pliers. Aluminum blade pierces both channels to eliminate any stripping or soldering. Latching safety lock ensures a reliable connection. Accepts virtually any 18-14 gauge wire. Gel sealant protects connection from moisture and grime. Constructed from high-impact plastic to protect against corrosion. Limited lifetime warranty (one-year finish, one-year parts)