A little heavy to wear all 4 at once!
I tried wearing all 4 at once, and I love the cooler feel on my skin, and the fit was great.  They are a little heavier weight than other jewelry, and I noticed that after I wore them for awhile, it was a little bit of a strain to my wrist.  I've had an injury to that wrist prior, so it may be a function of the injury.  In any case, wearing one or two at a time works great for me, I just can't wear all four together for any length of time.
Rating: 4 stars