The Self-Cooling Body Pad is the revolutionary cushion that cools on contact. It requires no water, no electricity and no refrigeration. The cooling effect begins as soon as pressure is applied, and lasts for up to 3 hours. It "recharges" automatically in 20 minutes, and folds easily for travel. Great for pain, swelling, discomfort, stress, night sweats, hot flashes and recovery from exercise, surgery and chemotherapy.