Unfortunately for me it is too small, the size is too tight, I am a big guy & when I seen this armring I was really excited to pick it up because it's description is that it's chunky.
However it's not big enough I assumed at 18cm it would be since I have another armring that's adjustable between the 18cm to 20cm size & it fits perfectly.
Otherwise the armring itself is amazing quality & I really love the design, I'm just disappointed the size doesn't fit me & I've wasted my money, for anyone looking at buying make sure to request a custom size if you are a big.