I first stumbled upon Relax Wraps at the Opry Mills Mall in Nashville TN many years ago. I've suffered migraines and severe headaches for decades. After purchasing my first set of the basic rectangular shape I've since collected a few hearts, neck, shoulder, and a couple for my eyes. I don't live near my family so I have left some at mom's and siblings houses so I can toss in their freezers when I get back home. I always have at least two in my own freezer. I've found I prefer the classic blend best. I've also learned that over time the other blends get too strong for me if I heat them in the microwave. Once that happens, you can't undo it. The heart shaped one is a great shape to sit on the crown of your head as it drapes over your temples. I have sent many friends and relatives to Relax Wraps over the years. You will not be disappointed.