Heat pack that is activated when squeezed and has a duration of approximately 25-30 minutes. It helps to soothe pain and its use is ideal in cases of chronic pathologies, chronic tendinitis, muscle injuries, stiffness, before exercise, muscle spasms, muscle spasms, joint stiffness and for obtaining heat in low temperature activities. Its size allows it to be easily transported everywhere and its versatility allows it to be applied to any area.