Pain will melt away when the Therall Moist Heat Pad is placed on the sore area. The Therall Moist Heat Pad has mircobeads that absorb and retain moisture that is released when heated to send a deep, healing heat into sore or stiff muscles. The moist heat is more effective than a simple dry heat, since moisture transmits heat more efficiently than air. Relax tense muscles or loosen stiff joints with the aid of the Therall Moist Heat Pad. The reusable heating pad can be used for relief whenever pain begins to flare up.