Reusable hand warmer, especially for cold days. Suitable for frostbitten fingers or sore muscles. Two units in one package. The hand warmer can also be stored in a pocket or glove when fishing, hiking or other outdoor activities. Suitable for frostbitten fingers or sore muscles. Instructions for use: Rub the metal plate back and forth until crystals form. Kneel down to increase the temperature. To dissolve the crystals, wrap the package in a towel and heat it in boiling water for about 7-10 minutes (or until the crystals are completely dissolved). Let it cool before use. When used correctly, the hand warmer can be used more than 100 times. It releases heat during crystallization and stores it during melting. The heating effect decreases with repeated use. Technical specifications: – Dimensions: 7.5 x 11 cm – Weight: 100 g/package
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