Snap It Hot/Cold Reusable Gel Heating Pad. Pain Relief! (Pocket (Hand Warmer), Assorted Colors - 5 Pack)

LONG LASTING INSTANT HEAT PACK - Click hand warmer uses unique technology to release heat from safe sodium acetate solution without electricity. After activation with a single tap on the metal plate, the heat pack changes from liquid to solid and reaches around 130 degrees in a few seconds, and can last for about 15 minutes, depending on the size and insulation. VERSATILITY - These heat pads are soft and bendable, making them easy to fit even in the most complex areas. In addition to using them as hand warmers, you can also use them to relieve arthritis pain, muscle pain, tendinitis, shoulder and neck pain, back pain, knee pain, and menstrual pain. EASY TO USE - Can be placed in the refrigerator for cold therapy. Do not put in freezer. For heat, just bend the inner disc, and it can be heated to 130 degrees immediately in 3 seconds. After cooling, put it in boiling water and boil for 5 minutes, put a rag underneath, after the hot compress bag returns to its liquid state, take it out and let it cool for repeated use. SAFE AND REUSABLE - This reusable hand warmer is made of environmentally friendly, high-quality, medical-grade materials and is resistant to wear. The hand warmer can be reset by boiling in water to liquefy the crystals. For best results, please cool down and store in liquid form. EMERGENCY NECESSITIES - The reusable hand warmer designed for body comfort, pain relief and instant heat. The portable long-lasting instant heat pack can be used many times for family first aid, camping, outdoor sports, emergency equipment, hiking and sports events.