Tubular Acoustic Guitar Made From Metal Piping

I thought I'd seen some weird guitars on eBay, but this one has got to be one of the strangest. I wonder what made someone decide to turn this length of metal pipe into a guitar? Because it was here, perhaps? See how the frets have been formed by removing metal from the spaces inbetween them. What a strange approach. I'd hate to think how this tubular guitar plays. It's not exactly the most user-friendly design, is it?