eBay item: penis stretcher device?

Penis enlargement devices are not new, what makes this device different is that this is supposed to be worn underneath your pants, as if you can go about your day totally unnoticed.
The merchant's eBay listing doesn't really say how it's supposed to be used, though it's probably obvious. I can't imagine any guy being able to walk, sit, or crouch around the office with his weenie under such trauma, and have this contraption totally unnoticeable to others. Guess how much it costs... $179.95. Click here to see the actual eBay listing.