Seeking a Particular Gadget

I’ve come across images of a metal contraption that forms a solid tube, lacking vent holes except at the very tip. Does anyone know who makes one, what it’s called, or where to find a high-quality metal tube? It needs to be something other than a standard cage.

That description fits the Steelheart manufactured by Steelworxx. They produce outstanding custom chastity devices that are definitely worth both the cost and the time it takes to get them.