It’s the 1X style lever, seems like a really bad design in that it has a bolt you loosen off to change the way the lever is pointing but the first few times I used it I simply pushed the lever and it came loose and just spun backwards. I didn’t want to over tighten it though for fear of stripping the bolt or it snapping if I push the lever too hard.
Had one of the older ones a few years back and the button system seemd far better IMO