These heavy-duty wire connectors allow for fast and reliable wire splicing. Made of durable plastic, they securely join two lengths of insulated wire together through a simple one-step process. No need for soldering or special tools, just strip the wires, insert into the connector, and tighten for a waterproof, airtight seal. The connectors come in a range of solid and stranded wire gauges suitable for household electrical projects as well as more demanding industrial and commercial applications. Their one-piece design protects live wires from short-circuiting, while the locking mechanism ensures connections will not loosen or fail over time. An affordable solution for any job requiring quick, permanent wire joins that will last for years.