I got this spinner CTR ring in a size 6.5 for my kids. Unfortunately this size is too big for all my kids... my 12 year old could make a size 6 fit, but DIY my finger measurement efforts at home did not pay off :/. It’s pretty and slim with a no-catch design and my 12 year girl liked it. The narrow width on this ring seems to make the size on this run slightly bigger than some of the wider-band rings I got from DB. I’d size down if you’re in between sizes on this style of ring.