510 male to 510 female extension over cable?

[whitewidows]

Has anyone ever seen 510 male to 510 female extension over cable something like 3-4ft long? The purpose is to connect my box mod to a 510 enail on "medication" device. It be nice to not have the battery hanging off the device so if you have ever seen anything like that could you please shoot me a link. It has to handle like 50w

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