Skin-friendly Flannel & Machine Washable: Comfytemp weighted back heating pad is made of soft flannel, which is easy to clean and durable. Detach the power plug from the socket, the neck heating pad can be machine washable, which provides maximum convenience for our daily use. Large Size & Adjustable Strap: The extra-large 22" x 33" electric heating pads offers full and snug coverage. The heating range extends to the neck, shoulder, and full back. The neck heating pad stays in place for hands-free convenience with an adjustable waist strap (support to 53" waist size) and a snap to fasten at the collar. All-round Heating for Pain Relief: Heating pad for back pain relief with built-in micro-thin wires for more even heat distribution, offers complete coverage to treat the neck, back, and shoulders simultaneously and makes it easy to place on the abdomen, knees, and waist, perfectly designed to relax muscles, improve circulation of blood, soothing pain, sore muscles, stress, and cramps, and give you a healthy body. Warmth & Safety is No.1 Priority: 3 heat levels of the heating pad for neck and shoulders can meet different needs temperatures for full-body pain relief. But it is worth noting, 2 Hours Auto-off technology ensures the safety and saves energy. For safety, sleeping at night is not recommended use. Weighted Design on Neck and Shoulders: Filled with 2.2lb high-quality micro-glass beads on shoulders, not only ensures that this weighted heating pad is sufficient to keep it in place and doesn't fall off, but also fits snugly so that the heat effect could be multiplied for pain relief. Confytemp heating pad frees your hands and immerses yourself in pleasure by letting your body feel like it's being embraced.