The closure works by sliding one end into the other then there’s a catch and clicks into place.
It wasn’t very problematic when I got the bangle but I had two worries. First, bangle was too flimsy I wanted to wear it all the time maybe even leave it on but felt like the bangle was too delicate. That is not a criticism of the piece as such, just unsuitable for my lifestyle. Second, I had a feeling that with frequent use - taking the bangle on/off - the closure would become smoothed out, less rigid and potentially causing problems with clicking into place.
I was assured by customer service that that was not the case however decided that to exchange anyway.