I had to Google rolling pin rings, but now that I've seen how they work, it makes perfect sense to me.
If you want to cook chicken breasts but are concerned that they will dry out, try this. Bread (I like to use Panko crumbs) and par fry them to get the desired color on the breading. Put them in a baking dish, add chicken broth, and bake at 400F for about 30 to 45 mins. When they're all done, the broth will have been absorbed and the chicken will be nice and moist. Since I don't usually like white meat because it's too dry for my taste, I was glad when my sister taught me this method.