Review (4/5): Wish I'd tried this sooner
When I got migraines I used to hold a really cold water bottle or can against my forehead and it helped relive the headache so seeing this I wanted to try. It took a couple times to really get it sealed properly where it wouldn't leak while in the freezer. It seemed to help and I've really enjoyed using it, and cannot wait to have this on hand during the summer just to cool off.