Cast aside your hot water bottle and bag of frozen peas! Pamper and soothe achy body parts with FishBellies™ microwave heating pads. Zap in the microwave and use as a heated neck wrap or to warm up on a cold night. Store in the freezer and use cold, post surgery, or post workout. FishBellies are perfect for back pain, neck pain, labor pains, shoulder pain, arthritis, and sports injuries.