Review (5/5): Good size
This I feel is more for things on the surface of the skin. I don't feel like it penetrates deep into your muscles. Better off using an ice pack. That said, my son loves using this for bug bites. I like using it on my face if I feel it's puffy or irritated. The roller is very smooth. It holds the coldness for a good amount of time. It's a good item to have on hand for various needs. It fits nicely in the door of my freezer.