I made one of these for my friend Anna probably sometime around 2015/2016 and was siked when I saw it recently. So, I'm bringing it back as a permanent fixture. Bridle leather base, with a single bondage ring and adorned with some needlepoint studs.
Sizing: Buy the largest size that will "fit" your wrist for maximum stud coverage. My wrist is 7" around and the M/L fits snugly on the tightest hole. M/L will fit well on 6.5"+ wrists and the S/M size will fit smaller wrists.