Fat-bars, thick-bars & axel bars (all refer to the same thing) have existed in the strongman word for decades. Many of the old-time strongman records were set using a thick-bar of some kind
Apollon's Axel and Rolling Thunder (more names referring to thick-bars) are still in used in strongman and powerlifting competitions today
Using a thick-bar will help to build strength levels virtually incomprehensible to mere mortals
Fat Gripz instantly turn regular barbells, dumbbells, cable attachments and pull-up bars into thick-bars and they're portable
Dave Tate, world famous elite powerlifter and owner of EliteFTS has spoken extensively about the benefits of Fat Gripz for powerlifters.
Many strongman events require competitors to lift very awkward, heavy objects with their hands. Standard barbells and dumbbells simply aren't going to replicate this which is why many strongman competitors are now using Fat Gripz.