Yes you are right, i just read some reviews on fuckcombustion..

The two ones that are sold on amazon.com are these:
one
two
Both of those have actually gotten decent reviews after i checked, any suggestion on which might be better?

they are not allowed per Amazon's terms of service.
There are sellers who sneak them in, but they are had to find because they can't use common terms to describe them. Plus they are often clones or not commonly known, so you are taking a chance of getting one that is not good, like this