Ergonomically designed, this Microwavable Shoulder and Lower Back Wrap is ideal for everyday back pain therapy. It can be tied around the lower back, lumbar, waist, or shoulder joint. The cover is made of high-quality soft cotton fabric on the outside and a layer of cotton fabric on the inside. It is easier to feel the heat through the cotton fabrics. Enjoy the pain-free work and play! -Treats shoulder and lower back muscles, large heating area, 10" by 18". Weighs 2.5 lbs ✔️ Ideal for shoulder joint pain and lower back pain. Treats back and shoulder muscle groups. It stays on the shoulder or around your waist when you move around. ✔️ Made of two layers of 100% cotton fabrics. You can feel the heat or the cold better. ✔️ The heat lasts for half an hour. Cotton fabrics are thinner, so the heat can permeate easily for people to feel the heat. ✔️ Filled with all-natural flax seeds. The heat wrap is constructed with multiple channels, so the filling will not shift to one end during use.
Filled with flax seeds in as many as 10 chambers, the filling stays put when you move around. Just microwave for a minute or so to enjoy the warm moist heat. Or freeze it for an hour to use it as a cold pack.