I've used these types of cable connectors before, they're pretty cool, they make it easy to use and connect cables. This design was fairly new because I've never seen anything like it before, but it works just like my other wire connectors. The fact that there is an entry on each side is really good and necessary for certain electrical applications. I've used the ones that have two inputs on one side and that's how they connect. Honestly this would make a great gift and a great addition to my tool box. The price for the quality offered is also great.
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