ZWJ1054 Features: * Moist heat pack * Convenient size for to provide moist heat therapy to relieve the pain and muscle spasms of arthritis, sprains or strains, fibromyalgia * Responds well to heat therapy * Professional-level moist heat therapy with the convenience * One-touch switch with 20-minute timer for safety * Automatically collects moisture from the atmosphere no water to add * Made in the USA