Strange inner tube?

Strange inner tube?

Has anyone noticed a tube like this before - I've never noticed such an uneven shaped one!

I'm sure that when it is in the confines of a wheel & tyre that all will be okay, but it can't be made from rubber of a consistent thickness.

It looked perfectly regular before I inflated it to check for leaks.

It wasn't the cheapest on ebay either & advertised as a"Hendler quality inner tube".

The Michelin "air stop" that I took out & patched as a spare is a regular size when inflated.