Specific instructions for use:Adhesive Capsulitis Magnetic Self-Heating Vest Back Brace Support Belt Waist Brace Posture Corrector Feature: 1. Self-heating belt, shoulder and neck warm compress, magnet care, acupoint magnet therapy, built-in 108 energy magnets, fit the shoulders, care for the health of the shoulders. 2. Self-heating waist harness improves oblique shoulders, expands shoulders and stretches back; 5 detachable ABS support strips disperse the pressure on the lumbar spine. Specification: Product Name: Magnet Shoulder Guard Back and Neck Product material: heating cloth Product color: black Size: M L XL Use Method: 1. Moisten the heating part of the self-heating product with water, and wear it after it is dry 2. It is best to wear it next to the body, and then tightly fix the care product directly on the affected part of the body 3. Generally, after 30 minutes, you can feel the obvious heat and acupuncture sensation Packing list: Magnets Self-Heating Waist Belt 1 Note: Please allow 1-3cm error due to manual measurement and make sure you do not mind before purchase. The color of the actual item may slightly vary from the images due to different computer screens and display settings. Thanks for your understanding Features: Self-heating Lower Back Brace, an be used to support shoulder, back and waist and maintain a better posture for improved sleep quality and body health. Thermal Moxibustion Therapy: Magnets Self-Heating Waist Belt, large back fever area, good hot compress effect, effectively relieving cold sore shoulders and neck. Lightweight, Easy to Put on and Take off: Heating Waist Belt, Medical grade adjustable lumbar support made from breathable fabrics provides extra compression for your lower back. Vertical support struts stabilise your back and prevent rolling away. Get the support you need to stay active Self-heating Lower Back Brace: Magnets Self-Heating Waist Belt, Warm shoulder and neck compress, self-heating warm fabric, magnetic curing with heating neck protector. Relief the Pain: Self-Heating Belt Waist, Accurately correspond to the acupuncture points on the back of the shoulder, with a good physiotherapy effect, relieve frozen shoulder and shoulder discomfort