Heavy-duty digital moist heating pad designed for deep penetrating relief across large muscle groups. The weighted build helps mold to your body while digital controls allow precise temperature and therapy session timing. Model 655 is Thermophore’s most powerful large-format heating pad. It delivers clinic-level moist heat with substantial weight that keeps therapy consistent across the back, hips, and shoulders. If you want maximum heat output with strong body coverage, this is typically the go-to Thermophore model. Thermophore Model 655 delivers maximum moist heat therapy performance with its large 14 x 27 inch size and approximately 4 lb weighted construction. Combined with digital heat controls and safety timers, it’s designed for users needing deep, consistent heat therapy for larger muscle groups and chronic tension relief.