Ice Cool Gel Pillow Mat 11 X 22"in Muti-Purpose Glycerin Cooling System by CK Company Size 11 x 22"in fits the width of your pillow, Soft, flexible, and use a nylon taffeta. No water, no leaking. Uses safe and high quality medical-grade material that will not leak. Great for headaches,toothache, temporary relief of headache Reducing fevers. Can be refrigerated or microwaved for use as an ice or heat pack. If you have any problems or dissatisfaction, we guarantee 100% money-back refund or exchange.