It says the boy has patented this item. Last time I checked, I thought it was a pretty big expense getting a patent. I had invented a couple items I thought might sell, but was held back because of the cost of the patent. There are those companies that advertise they will buy your inventions, but what I can see, don’t even waste your time with these, unless your invention is patented.....and then, only then, maybe.
I have never developed any idea that far. How much would you expect an invention similar to this would cost to patent?