Choose from 1st level (35℃/95 ℉-42 ℃/107.6 ℉), 2nd level (42℃/107.6 ℉-48 ℃/118.4 ℉), and 3rd level (48℃/118.4 ℉-55 ℃/131 ℉) banish the chill or soothe sore hands,keeping your hands cozy and comfortable.
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