● Click heat and easy to activate and use.
● Back pain relief and relaxation of stiff muscle.
● It can also be used as a cold pack for injuries and swelling.
● It’s safe, durable, reliable and non-toxic.
To Activate: Place the metal piece between forefinger and thumb, press until it clicks to start crystallization. When the crystallization is completed, squeeze the heat pad to make it soft and ready to use.