They do their job!

These do their job. They fit perfectly do what they are supposed too and are great quality. They are good quality plastic that doesn't warp and feel cheap.

Great toolless connector for your Christmas lights

I received the Noma Advanced Custom Male Plugs 10 for free in exchange for an honest review. For anyone who was confused initially like I was, the “Vampire” style of application in the product page, refers to the method of connecting the plug to the wire; it is another way of saying toolless connector. Instead of needing to strip the wire and screw it into place, you simply need to push the wire into the plug, which is convenient especially if you are setting this up while cooler outside. Overall, the quality of both the Male and Female version of these plugs is particularly good, and I had no trouble disassembling the plug (since both sides of the plug come in the packaging put together), then attaching it to the extension cord that I wanted to connect to.