Neck, Back, Knee: Essential Therapy KitChronic pain and stiffness can make everyday activities feel impossible. The Express Heat Therapy Back, Neck, and Knee Kit delivers fast, reusable heat relief to ease soreness, improve mobility, and keep you comfortable. Whether you're recovering from an injury, dealing with arthritis, or simply battling cold weather stiffness we got you. Perfect for athletes, outdoor workers, and anyone who needs instant pain relief on the go. Stock: In Stock SKU: