This ring is actually one size too big for my finger.  As you can see it moves around and actually I can flip it completely around.  It's very wobbly on my hand.  With the bling wrap you simply remove the backing, you wrap it around your finger, you take your ring, and slide it up over your finger and onto the bling wrap. And with that, it keeps your ring perfectly positioned and it doesn't move around anymore, it keeps your stone on top just where you want to be.