Self-heating Vest Magnetic Therapy Full Back Support Belt Shoulder Back And Neck Massager Spine Lumbar Brace Posture Corrector Pain Relief Belt Men Women Specifications: Material: Breathable Fabric, Magnets Color: Black Size: M/L/XL(Optional) M: (Suitable for waist circumference 53-83cm, recommended weight 45-60kg) L: (Suitable for waist circumference 60-97cm, recommended weight 60-72.5kg) XL:(Suitable for waist circumference 99-112cm, recommended weight 72.5-90kg) Features: 1.Built-in 111 energy magnets, self-heating acupoint magnet therapy, accurately correspond to the shoulder and back acupuncture points, effectively relieve the cold and soreness of the shoulder and neck. 2.A large area of the back is heated, and the effect of hot compress is doubled, relieves frozen shoulder and lower back discomfort, and protects the health of your shoulders and lumbar spine. 3.Effectively improve shoulder and waist discomfort, correct posture, improve sloping shoulders, and shape a beautiful body. Package Included: 1* Strengthen support type (M/L/XL) Note: 1.Please allow 1-3cm error due to manual measurement and make sure you do not mind before purchase. 2. The color of the actual item may slightly vary from the images due to different computer screens and display settings. 3. Thanks for your understanding!?We know you will like your new back support belt, if you have any questions, please feel free to contact us, we promise to provide you with a good solution. ?Can be used to support shoulder, back and waist and maintain a better posture for improved sleep quality and body health, suitable for people who spend long time working before computer, sleep with incorrect position, suffer from neck and shoulder fatigue and cervical stiffness, etc. ?Adjustable hook and loop type fastener straps, fast to release or close and free to adjust the tightness, 3 size variations can widely suit most users with custom fit. ?Built-in 111 pcs magnets will release heat quickly with long lasting heating effect, effectively helping improve micro circulation and promote blood circulation to relax muscle fatigue and relieve the pain associated with joint and back problems. ?Adopt breathable and softfabric, comfortable and skin-friendly for all season long time wear, will not cause any irritation to your skin.